3211 Flat glass
3221 Glass containers
3229 Pressed and blown glass, (not elsewhere classified)
3231 Products of purchased glass
3241 Cement, hydraulic
3251 Brick and structural clay tile
3253 Ceramic wall and floor tile
3255 Clay refractories
3259 Structural clay products, (not elsewhere classified)
3261 Vitreous plumbing fixtures
3262 Vitreous china table & kitchenware
3263 Semivitreous table & kitchenware
3264 Porcelain electrical supplies
3269 Pottery products, (not elsewhere classified)
3271 Concrete block and brick
3272 Concrete products, (not elsewhere classified)
3273 Ready-mixed concrete
3274 Lime
3275 Gypsum products
3281 Cut stone and stone products
3291 Abrasive products
3292 Asbestos products
3295 Minerals, ground or treated
3296 Mineral wool
3297 Nonclay refractories
3299 Nonmetallic mineral products, (not elsewhere classified)
PRIMARY METAL INDUSTRIES :-
3312 Blast furnaces and steel mills
3313 Electrometallurgical products
3315 Steel wire and related products
3316 Cold finishing of steel shapes
3317 Steel pipe and tubes
3321 Gray and ductile iron foundries
3322 Malleable iron foundries
3324 Steel investment foundries
3325 Steel foundries, (not elsewhere classified)
3331 Primary copper
3334 Primary aluminum
3339 Primary nonferrous metals, (not elsewhere classified)
3341 Secondary nonferrous metals
3351 Copper rolling and drawing
3353 Aluminum sheet, plate, and foil
3354 Aluminum extruded products
3355 Aluminum rolling and drawing, (not elsewhere classified)
3356 Nonferrous rolling and drawing, (not elsewhere classified)
3357 Nonferrous wiredrawing & insulating
3363 Aluminum die-castings
3364 Nonferrous die-casting except aluminum
3365 Aluminum foundries
3366 Copper foundries
3369 Nonferrous foundries, (not elsewhere classified)
3398 Metal heat treating
3399 Primary metal products, (not elsewhere classified)
FABRICATED METAL PRODUCTS :-
3411 Metal cans
3412 Metal barrels, drums, and pails
3421 Cutlery
3423 Hand and edge tools, (not elsewhere classified)
3425 Saw blades and handsaws
3429 Hardware, (not elsewhere classified)
3431 Metal sanitary ware
3432 Plumbing fixture fittings and trim
3433 Heating equipment, except electric
3441 Fabricated structural metal
3442 Metal doors, sash, and trim
3443 Fabricated plate work (boiler shops)
3444 Sheet metalwork
3446 Architectural metal work
3448 Prefabricated metal buildings
3449 Miscellaneous metal work
3451 Screw machine products
3452 Bolts, nuts, rivets, and washers
3462 Iron and steel forgings
3463 Nonferrous forgings
3465 Automotive stampings
3466 Crowns and closures
3469 Metal stampings, (not elsewhere classified)
3471 Plating and polishing
3479 Metal coating and allied services
3482 Small arms ammunition
3483 Ammunition, except for small arms, (not elsewhere classified)
3484 Small arms
3489 Ordnance and accessories, (not elsewhere classified)
3491 Industrial valves
3492 Fluid power valves & 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 fittings
3499 Fabricated metal products, (not elsewhere classified)
INDUSTRIAL MACHINERY AND EQUIPMENT :-
3511 Turbines and turbine generator sets
3519 Internal combustion engines, (not elsewhere classified)
3523 Farm machinery and equipment
3524 Lawn and garden equipment
3531 Construction machinery
3532 Mining machinery
3533 Oil and gas field machinery
3534 Elevators and moving stairways
3535 Conveyors and conveying equipment
3536 Hoists, cranes, and monorails
3537 Industrial trucks and tractors
3541 Machine tools, metal cutting types
3542 Machine tools, metal forming types
3543 Industrial patterns
3544 Special dies, tools, jigs & fixtures
3545 Machine tool accessories
3546 Power-driven handtools
3547 Rolling mill machinery
3548 Welding apparatus
3549 Metalworking machinery, (not elsewhere classified)
3552 Textile machinery
3553 Woodworking machinery
3554 Paper industries machinery
3555 Printing trades machinery
3556 Food products machinery
3559 Special industry machinery, (not elsewhere classified)
3561 Pumps and pumping equipment
3562 Ball and roller bearings
3563 Air and gas compressors
3564 Blowers and fans
3565 Packaging machinery
3566 Speed changers, drives, and gears
3567 Industrial furnaces and ovens
3568 Power transmission equipment, (not elsewhere classified)
3569 General industrial machinery, (not elsewhere classified)
3571 Electronic computers
3572 Computer storage devices
3575 Computer terminals
3577 Computer peripheral equipment, (not elsewhere classified)
3578 Calculating and accounting equipment
3579 Office machines, (not elsewhere classified)
3581 Automatic vending machines
3582 Commercial laundry equipment
3585 Refrigeration and heating equipment
3586 Measuring and dispensing pumps
3589 Service industry machinery, (not elsewhere classified)
3592 Carburetors, pistons, rings, valves
3593 Fluid power cylinders & actuators
3594 Fluid power pumps and motors
3596 Scales and balances, except laboratory
3599 Industrial machinery, (not elsewhere classified)
ELECTRONIC & OTHER ELECTRIC EQUIPMENT :-
3612 Transformers, except electronic
3613 Switchgear and switchboard apparatus
3621 Motors and generators
3624 Carbon and graphite products
3625 Relays and industrial controls
3629 Electrical industrial apparatus, (not elsewhere classified)
3631 Household cooking equipment
3632 Household refrigerators and freezers
3633 Household laundry equipment
3634 Electric housewares and fans
3635 Household vacuum cleaners
3639 Household appliances, (not elsewhere classified)
3641 Electric lamps
3643 Current-carrying wiring devices
3644 Noncurrent-carrying wiring devices
3645 Residential lighting fixtures
3646 Commercial lighting fixtures
3647 Vehicular lighting equipment
3648 Lighting equipment, (not elsewhere classified)
3651 Household audio and video equipment
3652 Prerecorded records and tapes
3661 Telephone and telegraph apparatus
3663 Radio & TV communications equipment
3669 Communications equipment, (not elsewhere classified)
3671 Electron tubes
3672 Printed circuit boards
3674 Semiconductors and related devices
3675 Electronic capacitors
3676 Electronic resistors
3677 Electronic coils and transformers
3678 Electronic connectors
3679 Electronic components, (not elsewhere classified)
3691 Storage batteries
3692 Primary batteries, dry and wet
3694 Engine electrical equipment
3695 Magnetic and optical recording media
3699 Electrical equipment & supplies, (not elsewhere classified)
TRANSPORTATION EQUIPMENT :-
3711 Motor vehicles and car bodies
3713 Truck and bus bodies
3714 Motor vehicle parts and accessories
3715 Truck trailers
3716 Motor homes
3721 Aircraft
3724 Aircraft engines and engine parts
3728 Aircraft parts and equipment, (not elsewhere classified)
3731 Ship building and repairing
3732 Boat building and repairing
3743 Railroad equipment
3751 Motorcycles, bicycles, and parts
3761 Guided missiles and space vehicles
3764 Space propulsion units and parts
3769 Space vehicle equipment, (not elsewhere classified)
3792 Travel trailers and campers
3795 Tanks and tank components
3799 Transportation equipment, (not elsewhere classified)
INSTRUMENTS AND RELATED PRODUCTS :-
3812 Search and navigation equipment
3821 Laboratory apparatus and furniture
3822 Environmental controls
3823 Process control instruments
3824 Fluid meters and counting devices
3825 Instruments to measure electricity
3826 Analytical instruments
3827 Optical instruments and lenses
3829 Measuring & controlling devices, (not elsewhere classified)
3841 Surgical and medical instruments
3842 Surgical appliances and supplies
3843 Dental equipment and supplies
3844 X-ray apparatus and tubes
3845 Electromedical equipment
3851 Ophthalmic goods
3861 Photographic equipment and supplies
3873 Watches, clocks, watchcases & parts
MISCELLANEOUS MANUFACTURING INDUSTRIES :-
3911 Jewelry, precious metal
3914 Silverware and plated ware
3915 Jewelers' materials & lapidary work
3931 Musical instruments
3942 Dolls and stuffed toys
3944 Games, toys, and children's vehicles
3949 Sporting and athletic goods, (not elsewhere classified)
3951 Pens and mechanical pencils
3952 Lead pencils and art goods
3953 Marking devices
3955 Carbon paper and inked ribbons
3961 Costume jewelry
3965 Fasteners, buttons, needles, & pins
3991 Brooms and brushes
3993 Signs and advertising specialities
3995 Burial caskets
3996 Hard surface floor coverings, (not elsewhere classified)
3999 Manufacturing industries, (not elsewhere classified)