Latex rubber for use in the manufacture of elastomer products, namely, O-rings, seals and valves; Liquid rubber; Liquid latex; Rubber solutions; Rubber thread not for textile use; Rubber clack valves for use in pipe connections; Sealing plugs made primarily from rubber; Sleeves of rubber for protecting parts of machines; Synthetic rubber; Threads of plastic for soldering; Valves of rubber or vulcanized fiber; Liquid latex; Non-metal sealing rings for use as connection seals; Non-metal seals f...