Custom NBR Nitrile FKM Silicone EPDM Rubber O-Ring Oring O Ring. Wide Material Selection: Available in NBR, EPDM, FKM, Silicone, Neoprene, PTFE, and many other rubber compounds. Customizable Sizes: Offer AS-568, DIN, Metric, and fully customized sizes to meet specific requirements. Custom Color Options: Produce custom molded rubber and silicone products in various colors upon request. Strict Quality Certification: ISO9001:2008 certified with approvals from KTW, W270, WRAS, ACS, ROHS, and REACH. Flexible Payment Terms: Accept T/T, L/C, West Union, VISA, and PayPal for secure and convenient transactions. Fast Sample Delivery: Sample lead time is 8 days, with mass production taking 12 to 18 days. Comprehensive Quality Control: Preproduction samples, material data sheets, and third-party inspections like SGS available. High Monthly Capacity: Production capacity exceeds 1500 tons of rubber materials per month.