Pressure gauges; pressure indicators; pressure meters; pressure sensors; pressure measuring apparatus; pressure indicating plugs for valves; pressure indicator plugs for valves; solenoid valves; electromagnetic valves; electronic control apparatus for valves; safety, security, protection and signalling devices and apparatus; non-metal caps for indicating pressure; non-metal end caps for indicating pressure.

Rubber valves; valves of rubber; non-metal flexible pipes and conduits; non-metal pipe fittings; non-metal conduit fittings; non-metal pipe and conduit elbows, extensions, connectors, couplings, joints, junctions, spacers, supports; non-metal pipe and conduit rings for use as pipe and conduit connection seals; non-metal pipe and conduit sealing rings; non-metal pipe and conduit stuffing rings; non-metal pipe and conduit water-tight rings; non-metal pipe and conduit rubber rings; seals; non-metal seals and sealing rings; non-metal seals and sealing rings used to connect pipes and conduits to other surfaces; sealing devices used to connect pipes and conduits to other surfaces; non-metal sealing devices; non-metal seals for attachment to the end of a pipe; non-metallic sealing membranes; non-metallic sealing strips; non-metallic sealing profiles; seals for pipe and conduit connections; rings of metal for use as pipe and conduit connection seals; rings of rubber for use as pipe and conduit connection seals; static seals; bonded seals; composite seals; dynamic seals; seal rings, sealing boots and sealing covers for use on penetrated parts between pipes, conduits and machine bodies, walls and floors to maintain an airtight or watertight condition; non-metal junctions for pipes and conduits.