国产精品一区亚洲二区日本三区,欧美一级黄色网,色影网,国产五月,为情所困电影完整版未删版百度云,永生战士完整版在线观看电影高清,色偷偷五月天

Steel-making Plant Succesfully Produce U187 Steel
  Updatetime:2013-02-01 Hits:

 a few days ago, based on the test plan made by the technology center, the steel-making plant succesfully produce U187 steel.  

  U187 steel is a high-end steel grade developed by the bridge rope project team of the company. Featuring high carbon, high silicon and micro alloy, this kind of steel has greater mechanical strength. The the strength of zinc-plate wire rope, which use U187 steel as material, can reach 1860Mpa, insured the bridge load bearing.

  The technicians of technology center and steel-making plant involved in the whole production process. After sample analysis, the products were consisdered suitable for the next rolling process.