17 Rubber shock absorbers for machines, rubber stoppers, sealing plugs made primarily from rubber, rubber, gutta-percha, asbestos, mica or semi-finished synthetic goods made from these materials in the form of dusts, sheets, bars and folios; goods made from finished or semi finished synthetic materials included in this class for energy absorption and isolation; flexible pipes and hoses made of rubber or plastic; pipe covers and fittings; textile hoses; non-metallic pipe covers and fittings; hose fittings; radiator hoses for vehicles; flexible tubes and hoses made from elastic, plastic or rubber, connecting hose for vehicles; goods made of rubber, natural rubber, plastic and similar materials namely rubber and natural rubber pads (shock absorbers), expansion bellows, billets of rubber, sleeves and brackets of rubber, foam rubber for protecting parts of machinery, rings of rubber for use as pipe connection seals, gasket sealer for use in plumbing, gasket rings