17 Rubber, raw and semi-worked, gutta-percha, gum in the nature of non-permanent adhesive putty, non-permanent sticky putty, semi-processed plastics, asbestos, mica and goods made from these materials, namely, parts of machines, apparatuses, instruments and equipment for the industry, namely, gear wheels, housings, axles, containers, frames, shells, cages, boxes, connectors, cam rollers, runners, collars, all aforementioned goods in semi-finished form used for further manufacturing use used for machines, motors and engines; plastics in extruded and moulded form for general industrial use, lactam-based plastics in extruded end moulded form for general industrial use; synthetic plastic as semi-finished products in form of foils, plates, rods, profiles, hoses, tubes, blocks, slabs and their cuttings; insulating materials made of plastics used for packaging and sealing; flexible pipes, not of metal; semi-finished mould casting parts of plastic for use in a variety of industries, namely, plastic materials in the form of foils, plates, rods, profiles, hoses, tubes, blocks, slabs and their cuttings