... used on machines.1.The use of rubber seal: Rubber seal is widely used in various ... parts, doors, window, machine and construction industry. Rubber seal could work during -40 centigrade to 160 ... centigrade.2.The function of rubber seal: Rubber seal could stop air, water and dust ... kinds of rubber seal: There are solid rubber seal, sponge rubber seal, hollow rubber seal and composite rubber seal.5. ...