3443

Fabricated Plate Work (Boiler Shops)

3494

Valves, Fittings

3511

Steam, Gas, and Hydraulic Turbines, and
Turbine Generator Set Units, Windmill for generating power

3523

Farm Machinery and Equipment

3531

Material Handling Cranes

3731

Ship Building and Repairing

3533

Oilfield Supplies

3541

Metalworking & Special Industry Machinery

3541

Rolling Mills & Steel Mills

3554

Paper Industries Machinery

3559

Special Industry Machinery

3568

Mechanical Power Transmission Equipment

3724

Aircraft Engines and Engine Parts

3743

Railroad, Equipemnt, Excluding Engines

3795

Defense Hardware, Ordinance

3494

Valves and Pipe Fittings

3511

Steam, Gas, and Hydraulic Turbines, and
Turbine Generator Set Units, Windmill for generating power

3531

Construction Machinery and Equipment

3533

Oil and Gas Field Machinery and Equipment

3536

Overhead Traveling Cranes, Hoists, and
Monorail Systems

3541

Metalworking Machinery And Equipment

3559

Special Industry Machinery

3561

Pumps and Pumping Equipment

3571

Rolling Mill Machinery and Equipment

3713

Truck and Bus Bodies

3724

Aircraft Engines and Engine Parts

3728

Aircraft Parts and Auxiliary Equipment

3743

Railroad, Equipemnt, Excluding Engines

3795

Tanks and Tank Components