... , VB, VA, KC, KB, KA, DC, DB etc, also can make on your demand;3.Characteristics: high and low temperature resistant, acid-alkali ... mold center, can develop most kinds of high tech requireds.9.Optional color for you of the Oil Seal,Rubber Oil Seal ... , gaskedts,o-rings ,and so on.12.Outside diameter from :8 to 1,000mm.13. We promise the high quality but competitive price ...