av免费不卡在线观看网址,黄色视频大全ww,h在线观看网站,亚洲视频在线免费观看,男人天堂视频在线播放,日本女同羞羞视频,jk美女隐私视频网站

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.