... rubber sealing Material: silicone Hardness:Shore40,50,60,70,80,90 Approved:NSF,FDA,WRAS,KTW,W270,UL,ACS,ROHS Itemwater valve rubber ... acid/alkali resistance, abrasion resistance etc.SizeAS568, P.G Series, ISO 361/1and Customized specificationThousands designs and exsiting molds are ... . Partial meet PAHS,NP requirement.NBR,EPDM,FKM,Silicon rubber etc. are available.Packing Spec.Standard packing: a. ...