Long experience in extruding and high level facilities made our extruding tubing and cord in high precision and low tolerance. O-ring cord are also welcome.Continuous curing system and equipments are to ensure the quality product with definite temperture and perfect curing control.   Specification :  1. Silicone material products and other rubber such as NBR, CR, EPDM, SBR, Viton?? . 2. O-Ring Cord are available for imperial and metric size. 3. Materials according ASTM D-2000 specifications. 4. Silicone for high-heat exceeded 250° or flame retardant ok, UL standard. 5. FDA grade. 6. Gum tubigs are also able to supply. 7. Bigest size upto 2" in ID. 8. Continous extruding curing system with time and speed, temperature control. 9. High precision & low tolerance.