日本不卡高清视频v中文字幕观看互动交流_手机在线看片欧美日韩_日韩激情一级无码毛片_国产真实尾随入室迷晕丝袜美女_久久天天躁狠狠躁夜夜免费观看

Casus Products>> Casus

XG835NH with high strength weathering steel,which is researched and developed by Xingtai Steel and railway institute and Downstream customers use this product to produce high strength bolts.Widely used in steel structure likerailwayvehiclesbridges,towers and other long-term esposure in the atmosphere.The steel structure used this product with corrosion prolong life,thinning and reducing consumption,save work and energy ,etc.