... NBR SBR EPDM,ectDuroSilicone about 20~80 Shore A; rubber about 40~85 Shore ATechnologyMoulding, punch, extrusionFunctionShock absorption, ... pressure resistance,anti-slip,waterproofCertificateISO and FDAUse inRunning machine,auto machine,home appliancePackageInner pack is PE bag and out ... Material NR,NBR,SBR&etc Advantage Anti-shock,durable,waterproof,non-toxic,heat protection,corrosion resistance Our ...