Tianjin Jinfeng Industrial and Trade Co., Ltd. is an International trading company, main exporting "Zhongshun" and "Lida" brands steel pipes. Products are High frequently weld pipe, galvanized steel pipe, petroleum casting pipe, petroleum, line pipe, steel and plastic compound pipe, colored rolled steel sheet, galvanized steel sheet, tinned sheet, cold rolled sheet, steel strips and other kinds of steel products. The annual output is 18...