17 Semi-processed plastic substances; semi-processed plastics for further manufacture; cellular materials of plastic, namely, semi-finished plastics; semi-finished in the nature of semi-processed composite plastics for manufacturing purposes; plastics being semi-finished products in the form of sheets, plates, ribbons, strips, blocks, pipes and tubes; semi-finished in the nature of semi-processed plastics containing carbon fibers, glass fibers, mineral fibers, quartz fibers and/or synthetic fibers; semi-finished, pre-impregnated materials intended to the industry made of carbon fibers, glass fibers, mineral fibers, quartz fibers and/or synthetic fibers, none of the foregoing for textile use; semi-worked synthetic resin-impregnated strips and fabrics, not for textile use, for the manufacture of parts and components; semi-finished materials intended to the industry, namely, resin-impregnated carbon fiber strips, not for textile use; semi-finished materials for the industry, namely, resin-impregnated fiberglass strips, not for textile use; semi-finished materials for the industry, namely, resin-impregnated synthetic fiber strips, not for textile use; semi-finished materials for the industry, namely, resin-impregnated quartz fiber strips, not for textile use; semi-finished materials for the industry, namely, resin-impregnated mineral fiber strips, not for textile use; semi-finished materials for the industry, namely, carbon fibers, mineral fibers, synthetic fibers, carbon fibers, glass fibers, none of the foregoing for textile use; semi-processed synthetic resins reinforced with synthetic fibers, mineral fibers and quartz fibers for use in industry and manufacturing; semi-finished materials for the industry, namely, composites of carbon fibers, glass fibers, mineral fibers, quartz fibers and/or synthetic fibers and resin, none of the foregoing for textile use; blocks, tubes, pipes and plates made of pre-impregnated materials in the nature of semi-processed synthetic resins and plastics used for further manufacture; non-metallic hoses and semi-finished plastic materials in the form of pipes for further manufacturing; extruded plastics in the form of tubes for use in manufacture