... :silicone colorful Hardness:Shore40,50,60,70,80,90 Approved:NSF,FDA,WRAS,KTW,W270,UL,ACS,ROHS Itemwater food grade ... designs and exsiting molds are available for you.CertificationISO9001-2008, NSF,FDA,WRAS,KTW,W270,UL,ACS,ROHSMaterialAll raw material meet ... : follow customers' requirement food grade rubber gasket approved ROHS,WRAS,NSF