In order to follow a perfect Industrial machine design process and improve any ergonomic environment, there are some major rules should be respected, especially if you are focusing on a preventive approach for an ergonomic assessment of your design. The department of labor of United Stated of America has just published the Occupational Safety and Health Administration categories. OSHA STANDARDS are rules that describe the methods employers are required to follow to improve the workers ergonomics and protect them from hazards.

One of the best regulations to follow are the OSHA, made to assure safe and healthful working conditions for working men and women by setting and enforcing standards and by providing training, outreach, education and assistance.There is a general list where you can find all of the Groups. Here you can find the major Group 34 ”Fabricated Metal Products, Except Machinery And Transportation Equipment”

This major group includes establishments engaged in fabricating ferrous and nonferrous metal products, such as metal cans, tinware, handtools, cutlery, general hardware, nonelectric heating apparatus, fabricated structural metal products, metal forgings, metal stampings, ordnance (except vehicles and guided missiles), and a variety of metal and wire products, not elsewhere classified. Certain important segments of the metal fabricating industries are classified in other major groups, such as machinery in Major Groups 35 and 36; transportation equipment, including tanks, in Major Group 37; professional scientific and controlling instruments, watches, and clocks in Major Group 38; and jewelry and silverware in Major Group 39. Establishments primarily engaged in producing ferrous and nonferrous metals and their alloys are classified in Major Group 33.

Industry Group 341: Metal Cans And Shipping Containers
3411 Metal Cans
3412 Metal Shipping Barrels, Drums, Kegs, and Pails

Industry Group 342: Cutlery, Handtools, And General Hardware

3421 Cutlery
3423 Hand and Edge Tools, Except Machine Tools and Handsaws
3425 Saw Blades and Handsaws
3429 Hardware, Not Elsewhere Classified

Industry Group 343: Heating Equipment, Except Electric And Warm Air

3431 Enameled Iron and Metal Sanitary Ware
3432 Plumbing Fixture Fittings and Trim
3433 Heating Equipment, Except Electric and Warm Air Furnaces

Industry Group 344: Fabricated Structural Metal Products

3441 Fabricated Structural Metal
3442 Metal Doors, Sash, Frames, Molding, and Trim Manufacturing
3443 Fabricated Plate Work (Boiler Shops)
3444 Sheet Metal Work
3446 Architectural and Ornamental Metal Work
3448 Prefabricated Metal Buildings and Components
3449 Miscellaneous Structural Metal Work

Industry Group 345: Screw Machine Products, And Bolts, Nuts, Screws, Rivets, And Washers

3451 Screw Machine Products
3452 Bolts, Nuts, Screws, Rivets, and Washers

Industry Group 346: Metal Forgings And Stampings

3462 Iron and Steel Forgings
3463 Nonferrous Forgings
3465 Automotive Stampings
3466 Crowns and Closures
3469 Metal Stampings, Not Elsewhere Classified

Industry Group 347: Coating, Engraving, And Allied Services

3471 Electroplating, Plating, Polishing, Anodizing, and Coloring
3479 Coating, Engraving, and Allied Services, Not Elsewhere Classified

Industry Group 348: Ordnance And Accessories, Except Vehicles And Guided Missiles

3482 Small Arms Ammunition
3483 Ammunition, Except for Small Arms
3484 Small Arms
3489 Ordnance and Accessories, Not Elsewhere Classified

Industry Group 349: Miscellaneous Fabricated Metal Products

3491 Industrial Valves
3492 Fluid Power Valves and Hose Fittings
3493 Steel Springs, Except Wire
3494 Valves and Pipe Fittings, Not Elsewhere Classified
3495 Wire Springs
3496 Miscellaneous Fabricated Wire Products
3497 Metal Foil and Leaf
3498 Fabricated Pipe and Pipe Fittings
3499 Fabricated Metal Products, Not Elsewhere Classified

For more information you can also visit:
The Standard Industrial Classification (SIC) System Search
The in Data & Statistics page from the Occupational Safety and Health Administration