Great Persistence is Necessary for Business Success! Best Ring Industrial Corporation was founded in 1981, over twenty years with the spirit of professionalism and persistence in manufacturing and R&D of rubber products. Our main product lines include O-rings, packing, rubber cord, rubber hose and various other products made of rubber that are widely employed on automobile, motorcycle parts, machinery equipment parts, bath and toilet device parts, etc. Best Ring products are well recognized both domestically and abroad.