A+

Manually operated metal valves; Metal pulleys, springs and valves; Metal valves not being parts of machines; Valves of metal other than parts of machines including those from alloy steel and titanium

Compressed air machine components, namely, cylinders, valves and air grips; Cylinders for motors and engines; Parts of oilfield wellhead machines, namely, gate valves, ball valves, check valves, plug valves, globe valves, choke and manifold industrial pumps, pump and valve parts, pipe fittings and flanges; Pump control valves; Regulators being parts of machines; Thermostatic control valves for machines; Valves being parts of machines; Valves being parts of machines operated pneumatically and by air

Electromagnetic coils; Solenoid valves