RTC

Metal pipes and fittings of metal therefore for transporting liquids or gas; metal valves not being parts of machines, metal casing pipes and quick couplings in the nature of metal pipe couplings used in transporting liquid or gas through pipes

Engines and motors other than for land vehicles, and structural parts and fittings therefor; parts of machines, namely, couplings for machines and coupling systems comprised of couplings for machines; automatic sleeve couplings for machines; connectors and adaptors, namely, connecting rods for machines, motors and engines and multi-couplings for machines; quick couplings for machines for transporting of liquids or gases in hydraulic and pneumatic systems in machines