Shandong Liaocheng ZGL Metal Manufacturing CO., Ltd was established in July 2007, and covers200 acres. The total investment is 8 hundred millons RMB.The project of seamless steel pipe processing proction in ZGL is built strictly in accordance with the national industral policy by the scientific ***** products are oil and casing pipe, hydralic pillar used pipe, pressure vessel pipe, automobile pipe, war industry pipe and so on.
