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ABOUT ROBON

Ningbo Robon Sealing CO.,LTD is a famous rubber products manufacturer in Ningbo.  We produce various rubber products:  rubber seal, rubber o ring , ED ring, o ring cord, rubber flat washer, special parts and other rubber products. 


The main material we used are NBR, EPDM, VITON, AFLAS, CR, Butyl, HNBR, SILICON, FFKM, PU or approved by FDA, NSF, WRAS etc.  We have the most advanced vulkameter, hardness tester, projectors, image instrument, tensile testing machine, and other professional testing equipments.

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PRODUCT CENTER

NEWS CENTER

  • BS1516 British Standard  O-ring Sizes

    BS-1516-1  2.90×1.78  BS-1516-24  32.92×3.53  BS-1516-47  97.79×5.34  BS-1516-70  189.86×6.99

    8 2017-06-01
  • JIS S Series o ring size

    MARYLAND METRICS - Technical Data Chart   TECHNICAL DOCUMENTATION O-RINGS - JIS Sizes S Series

    6 2017-06-01
  • JIS P G  size O ring

    P3  2.8×1.9   P48A  47.6×5.7  P205  204.5×8.4  G25  24.4×3.1

    8 2017-06-01
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