[Class : 6] Valves Of Metal, Other Than Parts Of Machines; Water Pipe Valves Of Metal; Drain Traps [Valves] Of Metal.[Class : 7] Valves [Parts Of Machines]; Clack Valves [Parts Of Machines]; Pneumatic Controls For Machines, Motors And Engines; Hydraulic Valves; Hydraulic Controls For Machines, Motors And Engines; Taps [Parts Of Machines, Engines Or Motors]; Steam Traps; Pres...