Qingdao Havit Steel Structure Co.,Ltd.has been specializing in designing and manufacturing  Steel Structure Buildings, Steel Structure Workshop, Steel Structure Warehouse , Container houses, Prefabricate house in China .Our workshop covers an area of 20000 square meters with annual output of Light Steel Structure 30000Ton , Heavy Steel Structure 50000Ton , C-type steel production line six, an annual output of 15,000 tons; Z steel production line an annual output of 3,000 tons. Our Products export to America, European, Australia, Middle-east, Africa and so on .   http://www.havitsteelstructure.com