Shandong Liaocheng ZGL Metal Manufacturing Co., Ltd. (ZGL is“Zhongganglian” for short) started construction in July 2007 on the 14-month project. Zhongganglian sits at the crossroads of Mudanjiang Road and Taishan Road, with Jihan Expressway in the north and Jingjiu Railway in the west. With a floor space of 200 mu, a construction area of 46,700m2, a total investment of RMB 800 million, an annual output of 500,000 tons of seamless tubes, and annual sales of RMB 4 billion, Zhongganglian is Shandong’s largest seamless tube manufacturer.……