Profiled bar for winding corrugated pipe with reinforced inner ribs and winding corrugated pipe with reinforced inner ribs

Profiled bar for winding corrugated pipe with reinforced inner ribs and winding corrugated pipe with reinforced inner ribs

  • CN 202,674,796 U
  • Filed: 06/15/2012
  • Issued: 01/16/2013
  • Est. Priority Date: 06/15/2012
  • Status: Active Grant
First Claim
Patent Images

1. be used for the profile shapes that internal-rib strengthens winding corrugated pipe, its cross section comprises a bottom and the plural hollow reinforced rib that is formed on the bottom;

  • It is characterized in that;

    in hollow reinforced rib, be provided with cross rib.

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