Why choose us Since 1998， Gnee(tianjin) multinational trade Co., Ltd. has been the leading provider of weathering steel and stainless steel products. We have our own factory which cover an area of more than 50 thousands square meters, with imported machines, professional designers, excellent quality, best service, we enjoy high reputation in the domestic and overseas market. We always try our best to meet the need of customer. 1.Large Corten steel stock& own manufacturing