Rubber Metal Cushion 1,FDA,ROHS Certificated. 2,OEM service 3,Ozone resistance, ... , Material:NBR,CR,SBR,HNBR, ACM,EPDM,IIR,NR,EP,Silicone,Viton etc.2, Hardness:Between 30~90 shore A3, Property ... or samples.8, OEM or ODM is welcomed. Rubber Metal Cushion