... .Rubber seal,acid-resistance 4.OEM/ODM serve ACM rubber product with black colour 1,Material: EPDM, NBR, CR, 2,Hardness : ... 60 -- 70A 3,Size: custom 4,Certificated by SGS/ISO 9001 5,Good abrasion performancelow friction rubber mat /high pressure ... ,quick delivery7,fit for the automotive and ground care machinery parts and some vehicles8,in line with international environmental protection , SGS /UL ...