raw or semi-worked rubber, gutta percha, elastic yarns other than for textile use, mineral wool for use as a building insulator, and mica; isolation, filling, and pliable pipes made of rubber, including pipe gaskets and ringers being rings of rubber for use as pipe connection seals; non-metallic pliable being flexible pipes and hoses made of rubber, plastic, elastic, including those used for vehicles; pipes in the nature of flexible PVC pipes, flexible plumbing pipes of plastic, and rubber pi...