NBR HNBR FKM EPDM Cr Silicone PU PTFE Rubber Seal Ring O Shape O-Ring. Wide Material Selection: Available in NBR, FKM, Silicone, EPDM, PTFE, and more for diverse applications. Custom Size & Shape: Supports standard (AS568, DIN) and non-standard sizes with customized dimensions. High Precision Quality: Smooth surface without flash, ensuring high accuracy and strong stretchability. Fast Delivery: Samples in 3-7 days; bulk orders delivered within 3-15 days with stock options. OEM/ODM Service: Welcome OEM and ODM orders based on customer drawings, samples, or descriptions. Certified Materials: Materials certified by SGS, CE, RoHS, REACH, and TS16949 for safety and compliance. Versatile Application: Suitable for machinery, automotive, oilfield, electronics, and household appliances. Flexible Payment: Accepts T/T, L/C, Western Union, and other secure payment methods.