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

Casus Products>> Casus

  The 35CrMoA produced by XINGTAI STEEL has stable composition, low harmful elements, small decarburization layer, few surface defects, and excellent plasticity and ductility. It is generally used to produce 10.9 grade high-strength fasteners. A customer of XINGTAI STEEL used this steel grade to produce bolts for nuclear power. The customer reported that the product had high strength and low cracking rate in cold heading, which met product usage requirements.