三级中文字幕,www.日韩操,国产亚洲精品美女久久久,97 人人操操人人

Casus Products>> Casus

  The 20CrMnTi produced by XINGTAI STEEL has the advantages of uniform and stable composition, fine grain, high purity and good surface quality. It has high hardenability, high strength and toughness. A customer of XINGTAI STEEL used this product to make clips on bridges,which showed that the quality of this product was stable and fully meet the demand for finished products .