亚洲天天骚女现场视频,www.888日本,亚洲第一天堂无码专区日韩,免费一级黄片视频在线观看无码,亚洲日韩线精品一区一区一区,一级无码日韩毛片,国产免费美女被艹视频

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.