TCS

Metal hardware, namely, washers; washers of metal for forming tight joints; metal seals for use in machines, automobiles, ships, cylinders and toys; metal seals for plumbing use; sealing caps of metal; metal sealing rings; metal gasket rings; metal gaskets for sealing use; ring-shaped fittings of metal; screw rings of metal; metal pipe collars; drill pipe attachments, namely, metal drill collars; metal expansion joints for piping and ducting; metal pipe couplings and joints; structural joint connectors of metal

Washers of rubber for use in machines, automobiles, ships, cylinders and toys; non-metal seals for use in machines, automobiles, ships, cylinders and toys; rings of rubber for use as pipe connection seals; seals for water pipe connection; seals for plumbing pipe connection; non-metal gaskets for use in machines, automobiles, ships, cylinders and toys; pipe gaskets; water tight rings for plumbing pipes; cylinder jointings; non-metal pipe collars