K3

Gas and liquid piping and pipeline components made predominantly of metal, namely, sleeves, shutters, sleeve shutters, straps, shackles, caps, flanges, pipes, pipe fittings, pipe clips, pipe collars, pipe connectors, pipe couplings and joints, junctions for pipes, pipe muffs, manually operated valves, sealing rings, gasket rings, ball lock pins, caps for pipes and pipe ends, closures for pipes and pipe ends, lids, plugs, seals, manhole covers, pipe safety fittings that minimize traction, dirt, and rotation, hand wheels, non-electric position indicators being parts of pipe valves, nipples, gasket rings; metal brackets

Hand-operated tools for assembling and disassembling, maintaining and repairing pipes and pipe brackets, namely, hand held cutting tools, namely, pinchers, wrenches, pliers, pipe beveling devices, namely, pipe cutters, taps, hex key wrenches and extensions for hand tools

Hydrants, plumbing fittings, namely, ventilating and evacuating valves and control valves

Non-metal gaskets for liquid and gas braces

Installation, maintenance and repair services, namely, assembling and disassembling plumbing fittings and metal pipe fittings for gas and water piping and pipelines, and gas and liquid conduction systems

Technical planning of gas and liquid piping and pipelines; technical planning services in the nature of industrial design of plumbing fittings and metal pipe fittings; technical planning of gas and liquid conduction systems