亚洲国产精品99久久久久久久久,乱伦家庭AV,国产精品美女久久久久AV电影,亚美欧AV

Casus Products>> Casus

  The material XGS45C of Xingtai Iron and Steel Corp.,Ltd is a dedicated material for shaft and rod, mainly used to produce automobile damping rod, engine gear ring and other products. Customers reflect that our XGS45C material has good control of  hardness, stable surface quality and less hemp pit, pitting, also has high product yield.