Production and supplier of the best rubber O-rings in VITON, SILICON, NBR and EPDM materials with anti-oil, anti-acid, anti-wear, anti-heat, anti-gasoline, anti-gas, anti-salt water, etc. imported from Germany and America in There are two ring and metric shapes. This unit is capable of producing all kinds of O-rings with thicknesses of 1.5mm, 2mm, 2.5mm, 3mm,...20mm,...30mm and... used in various industries such as petrochemical, oil, gas, Aerospace, power plants, water and sewage, cement factories, marine industries, defense industries, leather factories, pharmaceuticals, milk and dairy, etc.