[Class : 6] Sliding Stoppers For Metal Pipes; Valves Of Metal, Other Than Parts Of Machines; Pipe Couplings Of Metal; Sealing Rings Of Metal; Locks Of Metal, Other Than Electric; Padlocks; Discs (Metal ); Metal Rupture Discs And Metal Rupture Disc Holders (Not Being Parts Of Machines). [Class : 7] Valves [Parts Of Machines]; Valves Operated Automatically By Hydraulic Control; Valves Operated Automatically By Pneumatic Control; Hydraulic Valve Actuators; Pneumatic Valve Actuators; Sealing Joints [Parts Of Machines]; Gear Boxes Being Parts Of Machines; Filters For Machines; Filter Housings Being Parts Of Machines. [Class : 9] Electric Valve Actuators; Valves (Electronic Controls For Automatically Operating ); Limit Switches; Control Apparatus For The Flow Of Fluids, Namely, Fluid Meters And Flow Regulators. [Class : 17] Gaskets; Non Metal Gaskets.