... teflon,NBR, SILICONE, VITON,HNBR, CR, PTFE, EPDM, etc. Can choose on your requirement;2. types: TC, TB, TA, ... :Black, red, yellow, brown, white, green, violet etc, can make it on your order;6. Apply for: Auto, motorcycle ... plating/Anti-slipping/Baking/QA/Package/Shipping telfon flat washer specification: metal materialnonmetal materialspecification rangeapplication pressureworking temperatureCu,Mo, ...