Liaocheng Xinglong Seamless Pipe Manufacturing Co., Ltd. (hereinafter referred to as XSP) which is a cold drawn working line belonging to ZGL Group is a general steel factory engaged in pipe manufacture, the R&D, design, manufacture and installation of mechanical equipment, as well as international trade. During the 8-year developing period, XSP has established branches and manufacturing and R&D centers in North China. Pursuing the tenet of "serving clients by credit, satisfying client's ...