Service & Support

Do friend first,Do business second

  • 134

    Exporting Countries

  • $5.7

    the Total Sales $5.7 Million /year

  • 25

    Engineers And Technicians Support And Services

  • 15

    Production And Testing Procedures

  • 22

    Years Of Pipeline Specialist

  • 30

    Return Policy

10 Reasons to Buy from HENAN CHANGHONG
  • No middleman. You’re buying direct from the manufacturer &quality assurance

  • Support material report test report and drawings,there is a little difference,return the money

  • We have the largest online inventory of rubber expansion joints

  • We track and test every and record every process. We can track every link of the product.

  • Bad one pays two

  • Support ODM&OEM and brand

  • Return money if can’t delivery the goods in time

  • Grasp the quality from the source of raw materials, including rubber mixing, molding, vulcanization and testing

  • We offer additional testing, including hydrostatic, cycle life, and burst testing upon req uest

  • No order is too big or too small

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