About us
Our product material includes: VITON, EPDM,SILICONE, NBR, HNBR, CR,HYPOLAN and NR, etc. LONGRUN has strong development and manufacturing experience, as well as capability to produce non-regular shaped and O ring rubber products. Our product range covers standard industrial product as well as products based on ASTM D2000,JISB 2401,BS903 and DIN3771, such as O Ring,Back Up Ring, X Ring, Wash Seal, Gasket, Rubber damper, Grommet, Rubber Boned metal part, Bumper, Tube, Valve Stem Seal and Piston Seal, etc....
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