Industrial Machinery Manufacturing, Chemical processing plant and equipment NES, Chemical industry plant and equipment, Chemicals, Pharmaceuticals & Plastics, Filters and strainers for the chemical industry, by use, Couplings and fittings, plastic, for pipes and hoses, Plastic products, Fittings, plastic, for industrial and dangerous waste pipes, Pipe fittings, plastic, moulded, Raccorderia di plastica per tubature per rifiuti industriali e pericolosi