3405 - SAWS AND FILING MACHINES
3415 - GRINDING MACHINES
3422 - ROLLING MILLS AND DRAWING MACHINES
3431 - ELECTRIC ARC WELDING EQUIPMENT
3432 - ELECTRIC RESISTANCE WELDING EQUIPMENT
3433 - GAS WELDING, HEAT CUTTING, AND METALIZING EQUIPMENT
3436 - WELDING POSITIONERS & MANIPULATORS
3441 - BENDING AND FORMING MACHINES
3442 - HYDRAULIC AND PNEUMATIC PRESSES, POWER DRIVEN
3443 - MECHANICAL PRESSES, POWER DRIVEN
3449 - MISCELLANEOUS SECONDARY METAL FORMING AND CUTTING MACHINES