High Quality Heat Resistance NBR Silicone EPDM FKM Rubber Seal O Ring. Customizable Colors: Available in Black, Brown, Green, or fully customized to customer requirements. OEM and ODM Services: Acceptable for custom designs and samples with professional manufacturing support. High-Quality Materials: Constructed from NBR, FPM, Silicone, and EPDM for superior durability. 100% Pre-Shipment Inspection: Ensures zero defects and consistent quality before delivery. Free Samples Available: Customers can request free samples to verify product quality and fit. Fast Production and Delivery: Timely delivery guaranteed with peak and off-peak lead times of one month. ISO9001 Certified Quality: Manufacturing process certified under ISO9001 quality management system.