Seal Washer: 1.Material:copper,steel,rubber 2,Temperature:-60 to 500C ... :JIS,UNI,DIN,ASTM,GB 4.Samples free Seal Washer :1. Material: NBR, SILICONE, VITON,HNBR, CR, PTFE, EPDM, etc. Can choose ... as TOYOTA, FORD, VOLKSWANGE ,FIAT ,and so on.2. Materials: NBR, RP, FPM, MVQ, ACM, EPDM, PTFE, MFQ3.OEM and ODM ... .Delivery:15 working days(as per your order) Combination sealing washer