PERRIT

Iron and steel; nonferrous metals and their alloys; metal materials for building or construction; metal valves with actuators, not including machine elements; metal pulleys, springs, and valves, not including machine elements; metal cocks, not including machine elements; metal strainers for pipes; metal junctions for pipes; metal flanges.

Valves, machine elements, not for land vehicles; cocks, machine elements, not for land vehicles; junctions for pipes, machine elements, not for land vehicles; pneumatic-driven, hydraulic-driven industrial actuators to be mounted on valves for opening and closing valves, not for land vehicles; power transmissions and gearing for machines, not for land vehicles; valves for hydrogen refueling station, machine elements, not for land vehicles; chemical processing machines and apparatus; parts and fittings for chemical processing machines and apparatus.

Metal treating; metal surface machining; metal hardening treatment; metal surface hardening treatment; metal heat treatment; metal quenching; annealing; metal tempering; metal coating; metal plating; electroplating; hot dipping; shot peening; metal laser peening; metal thermal spraying.