... :EPDM,SILICONE 3,Process:molding compression,injection auto wire harness grommet ItemWiring harness door rubber grommetBrandRAMISCountry of OriginXiamen, ChinaItem No.RS2001Material ... ,immediate positive seal,position independen,variable openin pressure trough seat thickness.FunctionAct as backflow prevention devices or one-way ... ASTM, DIN, SAE,VDA6.1, UL, FDA, JIS . auto wire harness grommet