... , good elasticity 4.Anti- window rubber seal 1.Materials: NBR, NR ,EPDM ,SBR ,SR ,CR ,Silicon, etc. 2.Various sizes. 3 ... drilling and mining rubber parts and other rubber products. The material of these products are NBR, NR, EPDM, FKM, SILICON RUBBER, NYLON, PU, ... CR, SBR, EP, IIR etc window rubber ...