Seal Washer: 1.Material:copper,steel,rubber 2,Temperature:-60 to ... .Standard:JIS,UNI,DIN,ASTM,GB 4.Samples free Seal Washer :1. Material: NBR, SILICONE, VITON,HNBR, CR, PTFE, EPDM, ... Seal, also can make on your size.5.Optional color for you of the Oil Seal,Rubber Oil Seal,Rubber Seal ... -Ring and Rubber Gasket is welcomed as well.7. Apply for: Auto, motorcycle, machinery, water pumps, valves, etc.8. We ...