... help to design the whole set of the product anti-shock,slip-resistance,dustproof,protection Nbr/cr/nr/ ... buffer,oilproof,protection,aging resistance,wear resistance,pressure resistance,anti-slip,waterproofCertificateISO and FDAUse inRunning machine,auto machine,home ... finished before delivery Material NR,NBR,SBR&etc Advantage Anti-shock,durable,waterproof,non-toxic,heat protection,corrosion ...