haodiaocao这里只有精品一,男人午夜网站,国产免费插插插,国产精品欧美激情在线播放,国产成人aa在线视频,国产情侣自拍网站,狠狠色丁香婷婷

Casus Products>> Casus

  The GS45C-1 produced by XINGTAI STEEL has the advantages of stable chemical composition, low percentage of harmful elements,slight decarburisation. It 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 GS45C-1 material has good control of  hardness, stable surface quality and less hemp pit, pitting, also has high product yield.