1,FDA,ROHS Certificated. 2,OEM service 3,Ozone resistance,aging resistance,weather resistance Electrical Rubber Sheet 1, Materia:NBR, CR,SBR, EPDM, HNBR,ACM,IIR,NR,EP,Silicone, Viton etc.2, Hardness:Between 30~90 shore A3, Property:high/low temperature ( -40°C to +300°C ) resistance,oil and fuel resistance,weathering resistance,Ozone resistance etc 4, Certification: ISO9001:2008,ROHS,FDA5, ...