17 INDUSTRIAL GUM AND PLASTIC MOULDINGS FOR CAR PRODUCTION INDUSTRY, MACHINE PRODUCTION INDUSTRY, ELECTRIC APPLIANCES INDUSTRY, SANITARY INDUSTRY, NAMELY GASKETS, BELLOWS, PACKINGS, FEED-THROUGH SOCKETS, GUM-METAL-PARTS, COMPENSATORS, EXTRUSION PROFILES, TUBES, READY-MADE PROFILES, AND SYSTEM-BUILDlNG PARTS ALL MADE OF GUM AND/OR PLASTIC