Wholesale OEM NBR FKM Silicone Rubber O Rings Food Grade Oring. Customizable Color and Size: Color and size can be customized according to specific request requirements. High Chemical Stability: Resistant to most chemicals, does not absorb water, and maintains stability. Durable and Flexible Material: Made of high-quality silicone rubber, wear-resistant, drop-resistant, and fold-resistant. Comprehensive Certifications: ISO9001:2008 certified; materials approved by KTW, W270, WRAS, ACS, AS4020, EN681, EN549, ROHS, and REACH. Strict Quality Control: 100% visual inspection of finished products with pre-production samples available. Fast Prototype Lead Time: Average 7-10 days for prototypes; 2-3 weeks for production after sample approval. Flexible Payment Options: Accepts T/T, L/C, West Union, VISA, and PayPal for various transaction needs.