... ,OEM service 3,Ozone resistance,aging resistance,UV resistance Rubber Metal Co-extrusionRubber Metal Co-extrusion1, Material:NBR,CR,SBR,EPDM,IIR,NR,EP ... ,Silicone,Viton etc.2, Hardness: Between 30~90 shore A3, Property: high ... samples.7, OEM or ODM is welcomed. RUbber sealing Rubber Metal Co-extrusion