... treatment from rusting. Company ProfileLiaocheng Xinglong Seamless Pipe Manufacturing Co., Ltd is founded in 2004, covering an ... in 2009.Production Equipment Liaocheng Xinglong Seamless Steel Tube Manufacturing Co, Ltd. has equipped 60, 90, 140 ... Liaocheng.Contact usSHANDONG LIAOCHENG ZGL METAL MANUFACTURING CO., LTDLIAOCHENG XINGLONG SEAMLESS TUBE MANUFATURING CO., LTDDavid John Sales ManagerAdd: No ...