PTFE o ring. 1,Size:The same as your design, drawing. ... . 3,MOQ:5000pcs. 4,Hardness: 40-85 shore A. PTFE/Teflon O ring Item:PTFE/Teflon seal ring1. Material: Silicone, EPDM, NR, NBR, SBR ... , Ozone resistance, Abrasion resistance7. Application: Auto, Household Appliances, Electronic products, Machine, Armarium, Toy etc8. MOQ: 5000PCS or according to the products ...