1.The goods have passed ISO9000. 2.We can produce any type and colors as customers' requests. 3.Material:NBR .SILICONE.HNBR. Our company main-export rubber sealing products various in style products,including bonded.seal,lip type seal,o-ring,sealing washer.various rubber parts etc.(1)Available material:materials for NBR,NR,HMBR,EPDM,ACM,silicne,viton(FDM).etc.wide range of materials are available ...