... drawing or sample) -Certification:ISO9001:2008 Feature:1.Material:EPDM,Silicone,NR,VITON,etc2.Hardness:50~90shore A4.Color: ... resistant,temperature and aging resistant,wearable,ect7.Used for the automobile, scooters and other engineering industries to prevent dust ... a specialized manufacture of designing, developing and selling silicone rubber products.Your feedback and suggestion are very important to ...