Good Quality FKM NBR HNBR Silicone O Ring Rubber Seal for Industry. Customized Color Options: Colors can be customized according to customer needs and orders. Customized Size Options: Sizes are fully customizable to meet specific application requirements. OEM and ODM Services: Full customization services including logo printing and custom packaging available. Wide Material Selection: Available in FKM, NBR, HNBR, EPDM, and Silicone materials. Standard and Non-Standard Sizes: Offers AS568, ISO3601 standard sizes plus a wide variety of non-standard options. High Hardness Range: Hardness ranges from 40 to 90 Shore A for diverse application needs. Fast Delivery Time: Stock goods delivered within 15 days; production goods in 12-25 days. High-Quality Manufacturing: Advanced vacuum vulcanizing machines ensure high specification and low defect rates.