(Summary description)Shandong Zhongzheng Steel Pipe Manufacturing Co., Ltd. was established in 2006. It has 120 million yuan in fixed assets, covers an area of ​​260 acres, and employs more than 600 p

(Summary description)The company now has 2 modern hot rolling production lines and advanced monitoring equipment, mainly producing a variety of seamless pipes with a diameter of Φ95-273mm and a wall t