Machines for production of pipes, consisting of plastic and metal to be used for drainage areas, for canal and waste water drainage systems, for cable protection, for air-conditioning and ventilation systems, and for construction and building of chimneys, and structural parts and fittings therefor; Machine tools, namely, clamps for use in the precision clamping of work pieces, and structural parts and fittings therefor; machines for production for tubings made of plastic by blast extrusion process

Plastic tubes and pipe systems consisting, namely, of non-metallic flexible hoses and pipes for use in the convoluted tubing industry, insulated pipe supports, insulation jackets for industrial pipes, non-metal pipe couplings and joints, non-metal pipe collars, non-metal tubing and tubing couplings for joining and terminating pipes, pipe gaskets, joint packing for non-metallic flexible pipes, junctions not of metal for non-metallic flexible pipes; plastic tube fittings, namely, unions, reducers, tees, male connectors, caps and plugs for automotive, telecommunications, appliances, swimming pools, medical, marine, electrical conduit and fittings, robotics cable protection systems, mass transit, and custom use, namely, for manufacturing of corrugating equipment and tooling; plastic tube tie-ups, namely, unions, reducers, tees, male connectors, caps and plugs for automotive, telecommunications, appliances, swimming pools, medical, marine, electrical conduit and fittings, robotics cable protection systems, mass transit, and custom use, namely, for manufacturing of corrugating equipment and tooling; non-metal gaskets for automotive, telecommunications, appliances, swimming pools, medical, marine, electrical conduit and fittings, robotics cable protection systems, mass transit, and custom use, namely, for manufacturing of corrugating equipment and tooling; non-metal couplings for use with sewer systems

Plastic tubes and pipes systems, namely, non-metal gutter pipes, non-metal sewer pipes, non-metal water pipes, non-metal rigid pipes, infiltration tubes, namely, non-metal filtering tubes used to prevent storm water runoff pollutants from entering sewer systems, dehydration devices, namely, plastic water conduits for roofs and balconies, storm water management devices, namely, non-metal catchment basins and non-metal detention basins in the nature of cisterns, non-metal storm water dry wells and structural parts and fittings therefor for drainage sewers, flushing sewers and collecting sewers for dehydration, inspection manhole, all of the aforesaid for sewer systems; non-metal manhole cover consisting of concrete; concrete drainage structures, namely, trench drains; non-metallic construction materials, namely, drain bases and grates; rings for adjusting the height of manhole covers or sewer drains to correspond with the height of surrounding roads, consisting of concrete for sewer systems