High Quality Rubber Square O-Rings Silicone O-Rings with Custom Colors. Extensive Material Options: Available in NBR, FKM, Silicone, EPDM, and PU for diverse applications. High Pressure Resistance: Withstands static pressures up to 40 MPa and dynamic pressures up to 35 MPa. Custom Color Availability: Stock colors include Black and Brown with options for custom colors. ISO 9001 Certified Quality: Manufactured under strict quality control with 100% finished product inspection. Fast Standard Delivery: In-stock standard products can be shipped within 3-5 business days. Flexible Customization: Non-standard parts produced based on customer drawings or samples. Comprehensive Export Support: Supports FOB, CIF, EXW terms with sea, air, and express shipping options.