av永久免费观看,日韩在线精品视频,在线观看国产视频,国产精品久久片,国产毛片av网站,国产又粗又硬又黄又刺激,国产黄色片视频

Casus Products>> Casus

  The wire rod of GSWRCH25K makes the feature of uniform-chemical composition, lower harmful elements, higher purity, slight decarburization, perfect surface quality, mainly used to make 8.8 class fasteners, special-shaped parts, etc,A customer of XINGTAI STEEL uses this product to make shock absorber casing,which reflected that the product quality was stable and had good cold heading performance.