materials for packaging, prepackaging, packing, overpacking, closure of objects and for attachment of objects, namely packing cushioning and stuffing materials of rubber or plastics; padding materials of rubber or plastics for liquidtight purposes in packaging and packing; stuffing of rubber or plastic; liquidproof packaging, namely joint packings for closing parts of containers, bottles, jars, boxes, small bottles, tins, rubber containers, tin stoppers, and liquidtight rings of rubber or vul...