黄色一级片久久,天堂8√,午夜激情啪啪,亚洲人久久,国产成视频在线观看,蜜桃一区二区,97在线免费观看视频

Successful Pilot production of φ6.0mm XGLB82A at Wire Rod Mill
  Updatetime:2017-06-25 Hits:

  Good news came from the site of Xingai steel recently. First trial production for φ6.0mm XGLB82A is successful at hard wire work shop of wire rod mill.

  Rare factory in domestic can produce φ6.0mm because of remachining grooved roll and repeated debugging for rolling procedure as rolling groove with separate series. Collars of 5th production line and current process parts were used in this trial production and further discuss between technology department and workshop which optimized rolling procedure, guide system and groove system to guarantee production successfully.