METAL VALVES FOR FLUID CONDUCTING INSTALLATIONS FOR CONDUCTING STEAM, WATER, OIL, AIR, GAS, CHEMICALS, AND OTHER FLUIDS-NAMELY, GATE VALVES, GLOBE VALVES, ANGLE VALVES, CROSS VALVES, CHECK VALVES, RADIATOR VALVES, SELFCLOSING VALVES, WHISTLE VALVES, FLUID GUN VALVES, AIR GUN VALVES, SAFETY VALVES, FOOT VALVES, Y VALVES, FILTER VALVES, BLOW-OFF VALVES, AND STEAM TRAPS