婷婷五月伊人,亚洲国产精品免费,日韩午夜福利在线观看,一区二区午夜按摩,久久精品国产免费,国产免费a级片全部,成人黄片在线播放

The stain-steel mill of Xingtai Steel successfully developed and produced LZ50 Axle Steel for high-end railway vehicle through ESR
  Updatetime:2018-12-21 Hits:

  To further expand the market and increase the variety of remelting steel, recently, the stain-steel mill of Xingtai Steel successfully developed and produced LZ50 Axle Steel for high-end railway vehicle through ESR. It is a kind of high-quality specialty steel and the smelting of this steel is very difficult.

  This steel is a kind of quality carbon steel with high strength index and high plasticity index. It needs high flaw detection quality. The internal defects also should be strictly controlled in the smelting process

  This exploitation makes full use of our company’s advanced equipment and accurate control performance. We made a smelting production plan carefully and produced qualified remelting ingot which has smooth surface, uniform composition, high cleanness for many times.

  The successful production of this steel marks electro-slag technology of our company has reached a new height. This type of steel became a new member of specialty steel in Xingtai Steel.