Rubber (raw or semi-worked); electrical insulating materials; gaskets; joint packings; O-rings; semi-worked plastic products; rubber tubes and pipes; rubber stoppers; cords of rubber; packaging containers of rubber; rings of rubber; rubber lids and caps for industrial packaging containers; mats and sheets made of rubber; stops of rubber; shock-absorbing buffers of rubber; washers of rubber (other than for water taps); valves of rubber; cylinder jointings; packing (cushioning, stuffing) materials of rubber or plastics; rubber sleeves for protecting parts of machines.