TIANJIN LEFIN INDUSTRY GROUP containing TIANJIN LEFIN INDUSTRIAL CO.,LTD 、TIANJIN LEFIN STEEL IMPORT & EXPORT CO.,Website:http://www.lefinsteelpipe.com,LTD、 LEFIN STEEL HONGKONG CO.,LIMITED and TIANJIN SHENGQIFENG INTERNATIONAL TRADING CO.,LTD. Its total assets is more than 30 million USD and our mills totally has more than 90,000 Square meters.The annual production of welded tube is more than 300000 tons per year. There are more than 300 employees and 20 engineers now. Our main products include 1/2inch to 12 inch ERW PIPE/GI PIPE which has been produced according to...