... rubber& plastic ,such as PP , PA, PVC, PE, EPDM, EPT silicone rubber parts1.bursting pressure≥1MPa 2.working temperature -40°C ... Control1.product from purchased materials, processing, assembly, have strict quality control and passed the certification of BUREAU VERITAS Assessement Certification2 ... and other countries and regions.InspectionIQC, IPQC,FQC,QA good quality silicone rubber parts