... silicone, NBR, fluorosilicone, viton (FKM), viton DuPont and Dow elastomers, neoprene, HNBR, NBR+PVC, natural ... material, meet drinking water system 2) All manufacturing processes confirm to the ISO9001, ISO14001 and NSF-61 system 3) Excellent chemical and ... physical property4) RoHS directive compliant green products5) Rapid development line, from drawing, tool design to mold support and ...