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...