... , please do not hesitate to contact us. Thanks.Rubber Flat Washer is one of our main products, we can supply ... flat washers, also different materials of flat wahsers, viton flat washer, silicone flat washer, EPDM flat washer, NBR flat washer, PU flat washer, NR flat washer, etc.FKM Flat ... C to +220°CHardnessRange (Shore A) 50° to 90° FKM Flat Washer as below, Duro 80, OD16 × ID9 × TK3 MMMachines ...