www.diagram.com.ua/english
www.diagram.com.ua

Russian: Russian version English: English version

Translate it!

+ Search the Archive of technical magazine articles free 10,000 articles!
+ Search the Catalogue
+ Search the Data sheets Archive
+ Search the chassis and models Archive

Free online library on electronics FREE LIBRARY 

ALL ARTICLES A-Z

FREE ENCYCLOPEDIA OF ELECTRONICS AND ELECTRICAL ENGINEERING:
Alternative energy sources
Antennas
Assemblies of amateur radio equipment
Audio equipment
Audio-fidelity and speaker volume controls
Ballasts of fluorescent lamps
Bells and audio simulators
Car
Chargers, accumulators, galvanic cells
Citizens' Band radio
Clocks, timers, relays, load commutators
Computers
Consumer electronics
Current controllers, voltage and power regulators
Data communication
Digital equipment
Electric installation work
Electric meters
Electric motors
Electric power supply
Electrical safety, fire safety
Electrician's reference book
Electrician's tools
Electricity for beginners
Equipment protection from emergency operation, uninterrupted power supply units
Field intensity detectors
Fluorescent lamps
For a musician
For an electrician
For an inexperienced radio amateur
For radio amateur constructors
For students
Frequency synthesizers
Grounding and neutral grounding
Halogen lamps
High-frequency power amplifiers
Home, garden, farmland, hobbies
Household appliances
Indicators, detecting devices, metal detectors
Infra-red equipment
LEDs
Lighting
Lightning protection
Measuring equipment
Medicine
Microcontrollers
Microphones, wireless microphones
Miscellaneous
Miscellaneous
Mobile communication
Portable radio stations
Power amplifiers
Power controllers, thermometers, thermostabilizers
Power supply units
Preamplifiers
QRP equipment
Radiation indicators
Radio amateur computation
Radio amateur technologies
Radio control
Radio reception
Radio stations, transceivers
Reference materials
Security
Security and alarm system using mobile communication
Security devices and alarm systems
Sound systems
Sound-to-light units
Telephony
Television
Transmitters
Transverters
Upgrade of radio stations
Use of microcircuit chips
Various electronic devices
Voltage stabilizers
Voltage transducers, rectifiers, inverters
Welding equipment

USEFUL ARTICLES AND BACKGROUND MATERIALS:
Art of audio
Art of video
Batteries and rechargeable batteries
Big encyclopedia for children and adults
Biographies of great scientists
Children's scientific lab
Entertaining experiments in chemistry
Entertaining experiments in physics
For builders and handymans
For lovers of travel. Tips for tourists
Fundamentals of health and safety
Fundamentals of medical first aid
History of engineering, technology, objects around us
Home workshop
Industrial technology at home - simple recipes
Labor protection
Lecture notes, cheat sheets
Life of great physicists
Miracles of nature. A fascinating journey around the globe
Spectacular tricks and their solutions
Spyware
Personal transport: land, water, air
Riddles, puzzles, trick questions
Scale modeling
The most important scientific discoveries
Tools and mechanisms for agriculture
Typical labor protection instructions (Job descriptions)
Visual illusions

FREE MAGAZINES:
A Radio. Prakticka Elektronika magazine
Amaterske Radio magazine
Circuit Cellar magazine
Electronique et Loisirs magazine
Electronique Pratique magazine
Elektor Electronics magazine
Elektronika dla Wszystkich magazine
Elektronika Praktyczna magazine
Everyday Practical Electronics magazine
Evil Genius magazine
Funkamateur magazine
Nuts And Volts magazine
QEX magazine
QST magazine
Radiotechnika Evkonyve magazine
Servo magazine
Stereophile magazine
Радио Телевизия Електроника magazine

FREE AUDIO, VIDEO, TVs SCHEMATIC DIAGRAMS AND SERVICE MANUALS:

Popular audio
Popular car audio
Popular DVDs
Popular faxes
Popular monitors
Popular monoblocks
Popular phones
Popular TVs
Popular video cameras
Popular video recorders and video players

Avest TVs
Beko TVs
Elenberg, Cameron, Cortland domestic radio electronics
Erisson TVs
Gorizont TVs
Rainford TVs
Rekord TVs
Roadstar TVs
Rolsen TVs
Rubin TVs
Vestel TVs
Vitjaz TVs

Power supply units for TV sets and video equipment

FREE MOBILES SCHEMATIC DIAGRAMS AND SERVICE MANUALS:
Benq-Siemens mobiles
Eastcom mobiles
Ericsson mobiles
Fly Bird mobiles
LG mobiles
Maxon mobiles
Mitsubishi mobiles
Motorola mobiles
Nokia mobiles
Panasonic mobiles
Pantech mobiles
Samsung mobiles
Sharp mobiles
Siemens mobiles
Sony-Ericsson mobiles
TCL mobiles
Voxtel mobiles

FREE HOUSEHOLD APPLIANCES SCHEMATIC DIAGRAMS AND SERVICE MANUALS:
Beko household appliances
Braun household appliances
Candy household appliances
Elenberg household appliances
Elica household appliances
Gorenje household appliances
Hansa household appliances
Merloni household appliances
SEB household appliances
Snaige household appliances
Stinol household appliances
Universal household appliances
Whirpool household appliances

FREE ELECTRIC TOOLS SCHEMATIC DIAGRAMS AND SERVICE MANUALS:
Bocsh electric tools
Makita electric tools

FREE REFERENCE BOOKS:
Collection of dumps
Correspondence of models and chassis
Horizontal-output transformers by HR company
Horizontal-output transformers by Konig company
Integrated circuits, microcontrollers and transistors
Mechanisms of audio and video equipment
Radio components by Atmel
Radio components by Cirrus Logic
Radio components by Maxim
Radio components by Microchip
Radio components by Mitsubishi
Radio components by Motorola
Radio components by National Semiconductor
Radio components by Panasonic
Radio components by Philips
Radio components by Rohm
Radio components by Samsung
Radio components by Sharp
Radio components by Sony
Radio components by Toshiba
Remote controls for TV sets and monoblocks

NEWS OF SCIENCE AND TECHNOLOGY

ORDER OF DIAGRAMS  Order of schematic diagrams and service manuals
PRICE-LIST
HANDBOOK
FEEDBACK

SCHEMATIC DIAGRAMS TO ORDER:
World air conditioners
World audio
World car audio
World DVDs
World faxes
World fridges
World microwave ovens
World monitors
World monoblocks
World phones
World photo cameras
World projectors
World TVs
World video cameras
World video recorders
World washing machines

Russian amplifiers
Russian b-w TVs
Russian car audio
Russian color TVs
Russian electrophones
Russian monitors
Russian radio
Russian r-gramophones
Russian tape recorders
Russian testers
Russian video recorders

HAVE FUN!
Assembling the Rubik's Cube
Did you know?
Entertaining experiments at home
Funny puzzles
Interactive flash games
Optical illusions
Spectacular tricks and their solutions

SHARE THIS PAGE

DIAGRAM
2000-2019

Design and support:
Alexander Kuznetsov

Technical maintenance:
Mishell Bulah

Programming:
Daniel Monchukin

Marketing:
Tatyana Anastasyeva

Translation:
Natalya Kuznetsova

Contact us

When using materials of the website, link to http://www.diagram.com.ua is a must

created in Ukraine
created in Ukraine

Free online library on electronics

Free online library on electronics Free online library on electronics How to download files? How to download files? Share this pageShare this page

All articles of the Free encyclopedia

All articles of the Free encyclopedia

Free encyclopedia of electronics and electrical engineering / Articles

All articles of the Free encyclopedia of electronics and electrical engineering are listed in alphabetical order. For automatic translation of articles into your native language, please use Translate it! form in the top left corner of the page.

1-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z SECTOINS

Typical labor protection instructions. Types of work

Free library / Articles / Labor protection

Typical labor protection instructions. Types of work

Typical labor protection instructions. Types of work. Articles with illustrations and detailed explanations:

Acceptance and shipment of milk

An animal care worker in a terrarium

Anti-terrorist security and protection of children

Arrangement of foundations in open pits

Asphalt concrete works

Battery Maintenance

Blacksmithing

Breaking the whips on a semi-automatic installation

Briefing on the electrical safety group I

Car Maintenance

Car window tinting

Career Work

Cargo Slinging

Changing drain pipes

Chopping and wood skidding with tractors

Cleaning switches from snow

Cleaning the fuel tanks

Climbing works

Climbing works using industrial mountaineering methods

Cold processing of metals on machine tools (turning, milling, drilling)

Collecting dishes from the tables

Collection of forest seeds, fruits and cones

Conducting biology demonstration experiments

Conducting classes in athletics

Conducting classes in sports and outdoor games (football, volleyball, basketball, tennis, etc.)

Conducting demonstration experiments in chemistry

Conducting gymnastics classes

Conducting laboratory and practical work in biology

Conducting laboratory experiments and practical classes in chemistry

Conducting laboratory work and laboratory practical work in physics

Conducting of bulk loading operations in fuel tank farms, on railway and automobile racks

Conducting silvicultural works in lowland conditions

Construction of sand and gravel base of road works

Cutting cuttings (clearing tracks)

Cutting into scrap metal of wagons excluded from inventory

Cutting logs with gasoline-powered saws (when running bucking in a cutting area)

Cutting metal with scissors

De-mercuration measures

Development of wind-felled logging sites

Diagnosis and maintenance of tractors and agricultural machinery

Discharge-loading of viscous petroleum products

Dismantling of buildings and structures

Dismantling of supports

Dosimetric control when receiving scrap metal

Drain liquefied gas into group tank installations

Earthworks

Education in the Office Technology

Electric arc welding

Electric heating of concrete and soil

Electrical installation work on overhead power line towers

Electrical Measurements and Testing

Electrical work in the lesson of vocational school education

Employee on a business trip

Excursions in biology

Finishing spraying machine maintenance (UFN)

Fire safety in administrative premises

Fire safety in the building of an educational institution and in the surrounding area

Fire safety in the institution

Fire safety when working in the braiding shop

Fire safety when working in wood-finishing shops and consumable timber stores

Fire work

Following to the place of work and back

Food Packaging

Forest cultivation on the slopes

Forest cutting and selective sanitary cutting

Fuel blender

Furnace heating chamber

Garbage collection

Gas hazardous work

Gas hazardous work at the enterprises of petroleum products

Guided Tours

Hanging a car and working under it

High Voltage Testing of Dielectric Gloves

Holding a work day

Holding school events

Holding sports competitions

Horse care and transport

Hot work at gas filling points

Hot work at the enterprises of petroleum products

Impregnating and washing air filters

Instructions for first aid in case of accidents

Insulation and roofing work

Kitchen Worker

Landing dangerous trees

Laundry

Laying asphalt-concrete mix

Loading and unloading and storage of goods

Loading and unloading hopper cars

Loading and unloading of coal, cement and other bulk materials

Loading and unloading timber cargo ships

Loading and unloading various goods using cranes

Loading and unloading, moving and storage of materials

Loading and unloading, warehouse operations with highly inflammable explosive and dangerous goods

Loading wood using Fiskars loaders

Loading wood with jaw loaders

Loading, transportation, unloading and storage of corrosive and toxic substances and materials

Loading, transporting, unloading and storing explosive and flammable substances and materials

Locksmith assembly work

Maintenance of fixed PBX equipment

Maintenance of machines and mechanisms

Maintenance of milk pumps

Maintenance of pressure vessels

Maintenance of shop electrical equipment

Maintenance of technological wells, pipelines at the enterprises of petroleum products

Maintenance of technological wells, trays and pipelines

Maintenance of the machine of the grain cleaning department

Maintenance of the manure removal system

Maintenance of the maxillary logger as a lifting means

Maintenance of underground tanks for storing liquefied gas

Maintenance, repair and adjustment of electronic equipment and devices

Maintenance, repair and maintenance of road transport

Maintenance, repair and operation of motor and rail vehicles

Manual cutting of meat

Manual gas welding, brazing and surfacing

Manual harvesting of root and field crops

Manual metal processing

Manual wood processing

Mass events

Measurement of insulation resistance of electrical wiring and cables

Measuring the resistance value of grounding devices

Moving around the production premises

Moving around the territory and production premises of a motor company

Operating low-power radio stations of a radio communication network

Operating the crane-crank

Operating the manual hoist

Operation and maintenance of cone dryers

Operation and repair of interdepartmental and shop oxygen pipelines

Operation of an automatic water fire extinguishing system station

Operation of electric hoists

Operation of flowing and gas-lift wells

Operation of forced cooling installations for high-power amplifiers of wired broadcast stations

Operation of fuel tank farms

Operation of gas facilities of organizations

Operation of gas wells, gas collection and treatment facilities

Operation of grinding and grinding wheels

Operation of group bottled liquefied gas installations

Operation of hair dryers in hairdressing salons

Operation of load-lifting cranes such as DIP and PIONEER

Operation of objects for maintaining reservoir pressure and enhanced oil recovery

Operation of observation fire towers

Operation of PVS-12 scaffold

Operation of safety ropes

Operation of sewage treatment plants

Operation of stationary compressor stations for gas lift and gas injection into the reservoir

Operation of steam and hot water boilers at the enterprises of petroleum products

Operation of tanks I-1-OCB

Operation of the dry drum nozzles

Operation of the welding machine

Operation of water heaters

Operation of wells equipped with rodless pumps

Operation of wells equipped with sucker-rod pumping units

Oxygen cutting

Packaging of medicines

Packing of oil products in barrels and small containers

Painting works

Peeling fruits and potatoes

Performing copy offset processes

Physical education classes

Piling works

Preparation of logging tracks in mountain conditions

Preparation of the test

Preparing cutting areas in the cutting room

Preventing fires and preventing burns in road transport

Prevention of main and distribution power shields

Production of letterpress printing forms

Production of stencil printing forms

Pruning trees to grow along communication lines

Pumping non-evaporated LPG residues from underground tanks

Quenching forest fires

Radiation monitoring on the area contaminated by artificial radionuclides

Radio measurement work

Refrigerator maintenance

Relocation and stay of workers on the territory of the enterprise, production, laboratory and administrative buildings

Removing and installing vehicle wheels

Removing snow from roofs

Repair and maintenance of electrical equipment of motor vehicles

Repair and maintenance of machinery and equipment

Repair and maintenance of tractors and agricultural machinery

Repair and testing of oxygen plant cylinders

Repair of cable lines and installation of cable sleeves

Repair work on PPC equipment

Replacement of liquefied and dissolved gas cylinders

Rules of conduct in icy conditions when snow, icicles and ice are falling from rooftops

Sandblasting

Sawing the bone

Service for portable acetylene generators

Service of boilers on liquid fuel

Service of cranes with a loading capacity up to 500 kg

Service of steam boilers on liquid and gaseous fuel

Simultaneous drilling operations

Smelting and bottling a typographic alloy

Soldering and tinning products

Soldering products containing lead

Soldering work with lead solder

Sort round timber using an automated timber transporter

Sowing and planting forests

Storage and operation of gas cylinders

Storage of agricultural machinery

Storage, operation and transportation of cylinders with liquefied, dissolved gases

Taking walks, hiking trips, excursions, expeditions

Technical inspection and diagnosis of underground reservoirs

Testing an abrasive tool

Testing and adjusting lightning protection

Testing safety belts, portable ladders and ladders

Testing the insulation of communication cable cores

The staff of the timber-floating vessels

Thermal and electric arc coating

Timber trailers

Tire assembly work

Tire repair work

Towing and uncoupling cars or car and trailer (semi-trailer)

Transportation of people by road transport

Transportation of people by truck

Transportation of students and pupils by road transport

Transportation, storage and operation of cylinders with compressed and liquefied gas

Transporting animals

Unloading logging equipment using LT-10 (RRU-10M) units and jaw loggers

Unloading of bitumen, tar, tar

Unloading railway cars

Use of bleach to disinfect industrial premises

Using construction and assembly guns

Using gas burners in open telephone wells

Using technical training tools

Vehicle Maintenance

Vulcanization and tire fitting works

Welding and gas-cutting works, working with gas cylinders

Welding of polyethylene gas pipelines

Well overhaul and routine maintenance

Wiping glasses, walls and vacuuming

Work at height

Work at pumping stations

Work in a closed area

Work in a diesel

Work in a physical laboratory

Work in cable signal wells

Work in clinical diagnostic laboratories

Work in forest nurseries

Work in greenhouses

Work in the biology office

Work in the chemistry room

Work in the display class

Work in the extended day group

Work in the office of computer science

Work in the sterilization

Work in wells, collectors, ventilation chambers

Work near existing railway lines and highways

Work on a centrifuge

Work on a cutting line like POLLAR

Work on a cutting machine

Work on a drilling machine

Work on a hydraulic horizontal press for pressing paper waste such as MAG 102F, SELOSS, DIXI

Work on a universal binding and blotter and tetrado-saddle press

Work on gear cutting machines

Work on loading and pouring viscous petroleum products

Work on metalworking equipment

Work on planers

Work on processing book blocks on the ZIKLOH line

Work on road-building machines near power lines

Work on sampling and measuring the level of petroleum products

Work on stationary and manual cutting electric machines

Work on sterilizers (dry ovens)

Work on the compressor installation

Work on the construction of prefabricated and monolithic foundations

Work on the curd dispenser

Work on the electrographic equipment

Work on the experimental area

Work on the fuel oil industry of a thermal power plant

Work on the installation for spilling viscous products and sealing plastic bags

Work on the press

Work on the processing of book blocks on the Kolbus line

Work on the PVE-2 die-cutting press

Work on the scaffolding with a movable workplace

Work on the winding and braiding machine

Work on waxing machines

Work on web offset printing machines such as KOLORMAN, UNISET, RONDOSET, etc.

Work on web offset printing machines such as VISION, MITSUBISHI, PRESSLINE, etc.

Work outside the enterprise and organization

Work with an impact on the well bottom zone

Work with electroplating baths

Work with petroleum products at gas stations

Working in areas with possible presence of hazardous gases

Working on a B-3 type bookstore machine

Working on a BE-22 type bookstore machine, etc.

Working on a block press

Working on a book insertion machine such as POD, etc.

Working on a cassette-knife folding machines

Working on a circular machine

Working on a circular saw for longitudinal and transverse sawing

Working on a circular-laminating machine

Working on a CITOBORMA drilling machine

Working on a crucible gilding press such as FOMM, KRAUSE, BAER, YAWA, etc.

Working on a die (punching) machine

Working on a distiller

Working on a drilling machine

Working on a gluing machine

Working on a grinding machine

Working on a grinding machine

Working on a hand gilding press

Working on a HDTV setup

Working on a jointing machine

Working on a KD-3 type lidding machine, etc.

Working on a KOLBUS type slot making machine, etc.

Working on a lathe woodworking machine

Working on a line-tetrad machine

Working on a machine for covering brochures with a cover

Working on a machine for edging blocks made by thermonites

Working on a machine for packaging in film type DEM-L8-12, 4255-SA and t . п.

Working on a machine for scoring of covers and labeling ribbons on the cover

Working on a machine for the manufacture of pieces

Working on a machine for wrapping books in a dust jacket like BZSP, etc.

Working on a milling machine

Working on a multi-hardware stitching machine

Working on a packaging (film) machine such as ZITMA, CALLFASS, etc.

Working on a pasteurizer

Working on a patching machine

Working on a perforated folding machine

Working on a perforation punching machine

Working on a personal computer

Working on a planer

Working on a PUA-1 type packaging machine, etc.

Working on a punching machine such as KAMA TS, YAWA, etc.

Working on a risograph

Working on a roll-cutting and rewinding machine such as ROTOFLEX

Working on a roller machine

Working on a rotary mower

Working on a sanding machine for processing eyeglass lenses

Working on a screw-cutting lathe

Working on a semiautomatic device for cutting KRAZE type corners, etc.

Working on a sewing machine

Working on a shading machine

Working on a sharpening machine

Working on a single-stitching machine

Working on a spiral stapler and a bolt insertion

Working on a stone crushing installation

Working on a temostat

Working on a thermostat

Working on a VD-14 type slot machine, etc.

Working on a vertical hydraulic press for pressing paper waste

Working on a washing machine

Working on a wood-processing unit

Working on an after-powder dresser

Working on an automatic washing installation of portal type M-12 ISTOBAL

Working on an ECOSPIR, ECO type film wrapping machine

Working on an ultrasound diagnostic device

Working on band cutting equipment

Working on cable supports

Working on calenders

Working on cardboard cutting machines

Working on cassette folding machines

Working on chimneys

Working on copying equipment

Working on desktop manual presses

Working on digital printing machines such as XEIKON-DCP / 32 D, etc.

Working on equipment for the production of envelopes

Working on feeder lines

Working on fiber-optic communication cables

Working on film pre-molding machines

Working on flexographic printing machines

Working on grinding and grinding machines

Working on grinding machines

Working on harvesting machines

Working on high-frequency installations for the manufacture of binding covers

Working on inserts, sewing and cutting machines

Working on insert-sewing machines

Working on knife-folding machines

Working on knitting machines such as MB-3, etc.

Working on letter typing machines (automata)

Working on letterpress printing machines

Working on letterpress printing machines

Working on line-dialing machines

Working on machines for gluing folding boxes

Working on machines for tying packs of books such as MOP, AMPAG, ZIBIK, ZIKLOP, etc.

Working on mechanical and woodworking equipment

Working on one-knife paper cutting machines

Working on pad printing machines

Working on paint machines

Working on photo-typing equipment

Working on presses for crimping book book stubs

Working on sample printing machines

Working on screen printing machines

Working on sewing machines and automatic machines

Working on sheet cutting machines

Working on sheet gathering equipment

Working on sheet-fed letterpress machines

Working on sheet-fed offset printing machines such as HAMADA, RYOBI, YIYING, SPEEDMASTER, etc.

Working on slitting machines

Working on small sheet-fed offset printing machines such as HAMADA, RYOBI, YIYING, GRONHI, TOKO OFFSET and others

Working on space-boring dialing machines (automata)

Working on the AC-DA, AC-40 Befam tweezer

Working on the cardboard box

Working on the equipment for sewing books bookcases

Working on the fascaster

Working on the machine for sealing the spine of the book block

Working on the printing-cutting machine

Working on the printing-die-cutting machine with a special device for hot stamping with gold and colorful foil

Working on the slotting machine

Working on the starter plants

Working on three-prong paper cutting machines

Working on VK-30 steam sterilizers

Working with a bitumen electric heater

Working with a blowtorch

Working with a cash register

Working with a chainsaw

Working with a circular saw

Working with a device for cutting metal products (detachable machine)

Working with a drilling tool

Working with a fabric

Working with a gasoline nozzle with an electro-compressor

Working with a kerosene burner

Working with a knife

Working with a manual oblique

Working with a manual winch and manual hoist

Working with a megohmmeter

Working with a mounting-piston gun

Working with a stripping tool

Working with a thread-cutting tool

Working with a tool for manual forging

Working with a trimmer on trimming a bush

Working with a water pump

Working with abrasive and elborovym tool

Working with an angle grinder

Working with an electric chainsaw

Working with an electric crane operated from the floor

Working with an electric drill

Working with an electrified instrument

Working with an endoscope

Working with antifreeze

Working with blood and other body fluids of patients

Working with disinfecting solutions, lime solutions, paints and varnishes and paints

Working with electric heating installation for the repair of soft roof

Working with electric titanium

Working with fiberglass, fiberglass, fiberglass

Working with fitting tools

Working with hand tools

Working with hand tools and accessories

Working with hand-held power tools

Working with ladders and ladders

Working with laser devices

Working with leaded gasoline

Working with liquid nitrogen and Dewar

Working with liquid nitrogen and liquid helium

Working with manual woodworking tools

Working with methanol

Working with mineral fertilizers and pesticides

Working with Odorant

Working with piercing, cutting tools and fixtures (needles, knife, scissors)

Working with pneumatic tools

Working with pneumatic tools

Working with portable power tools and manual electric machines (power tools)

Working with pyrotechnic tools

Working with solvents

Working with the anolyte

Working with the belt conveyor

Working with the drying chamber

Working with the jack

Working with the kitchen stove

Working with the lawnmower

Working with the lift (tower)

Working with the petrol burning set

Working with the provided psycho-neurological boarding

Working with toxic, flammable substances, poisons, drugs

Works at the intersection of the main feeder lines of wire broadcasting with the wires of overhead electrical transport networks

Works from the lift located on the ADM

Works in the area of communications at a depth of more than 2 meters

Works of increased danger

Works on pressing scrap and metal waste on palletizing hydraulic press

Works on rack-mount communication lines and when hanging communication cables

Works on the mechanical cleaning of wires of the contact network from ice formation using MOG-6

Zoo animal care worker

All articles of the section Labor protection:

Electrical safety

Fire safety

First aid for an injured person

Job descriptions

Labor protection for different employee groups

Meeting the labor protection requirements

Safety and workplace hygiene

Social protection of injured workers

Typical instructions for labor protection. Professions

Typical instructions for labor protection. Types of work