... flexible hanger, rubber shock pad, shock absorber, pipe damper, seal, gate valve,check valve, foot valve, filters, valves, ... absorber,pipe shock absorber,soft joint etc Consist of inner rubber,Jinlun reinforced rubber and loose metal flange, ... concentration, solid-state materials. Material: NO.NAMEMaterial1Inner and outer rubberNR,EPDM,NBR,SI2Key frameNylon Core fabric3Pressurized ringSteel Wire ...