NAICS 333512 — Machine Tool Manufacturing 
BEA sector: Metal cutting and forming machine tool manufacturing
Activity: Slotting machines, metalworking, manufacturing
Activity: Tapping machines, metalworking, manufacturing
Activity: Threading machines, metalworking, manufacturing
Activity: Turning machines (i.e., lathes), metalworking, manufacturing
Activity: Turret lathes, metalworking, manufacturing
Activity: Ultrasonic boring, drilling, and cutting machines, metalworking, manufacturing
Activity: Valve grinding machines, metalworking, manufacturing