Gutta-percha; Caulking materials; Gum, raw or semi-worked; Joint packings for pipes; Latex for use in the manufacture of foam rubber, rubber gloves, condoms; Liquid rubber; Pipe gaskets; Pipe muffs, not of metal; Rings of rubber for use as pipe connection seals; Rubber bottle stoppers; Rubber seals for jars; Rubber solutions; Rubber, raw or semi-worked; Shock absorbing rubber buffers for industrial machinery; Synthetic rubber; Washers of rubber or vulcanized fiber; Watertight rings for plumbi...