... Beyond Seals Co.,Ltd. mainly manufacture rubber parts including rubber stoppers, rubber sleeve seals(O ring, U ring, ... widely used in the automotive, mining, shipbuilding, powermetallyurgy, fire, petrochemical, military, home appliances, electronics, pharmaceutical and other ... foreign customers.1.Description of products Blind rubber grommet ProductBlind rubber grommet MaterialNR/Silicone/NBR/EPDM/SBR, ...