... 1) Material : NBR, FPM (VITON) , MVQ(SILICONE) , ACM ,EPDM ,PTFE(teflon) ,HNBR 2) ISO9001:2000 Supply oil seal and valve stem ... .2) Material : NBR, FPM (VITON) , MVQ (SILICONE) , ACM ,EPDM ,PTFE(teflon) ,HNBR ,3) Outside diameter from:6mm to 500mm4) Specialized in ... all the oil seal, water seals, gasket,washer ,PTFE seals, PTFE ring ,teflon gasket ,molded rubber products, rubber roller, rubber cover ...