... customized parts with high quality approvedNSF61,WRAS,KTW,W270,FDA,ACS,ULColor:blackMaterial:siliconeperformance:good high/low temperature,aging resistance, ... good electrical properties,color stability.certification:NSF61,KTW,ACS,W270,FDA,ULquality standard:ISO9001:2008,ISO/TS 16949: ... Low temperature tester RDW-100 1 1.0 Acceptable Oil resistance tester GT-7040-L 1 6.0 Acceptable ...