Shandong Zhongzheng Steel Pipe Manufacture Co., Ltd. is a large Seamless Steel Tube manufacturing enterprise with 600 thousand of designed one year. We are one of the largest seamless steel tube producers in Shandong Province, having ISO9001 International Quality Control Certificate and the American Petroleum Institute API Certification.

Advanced equipment for production and examination has been introduced to ensure our quality products. And we attach much importance to modernization of manufacturing machines to ensure advanced level of our products. AC-cu-roll mill and ASSEL mill assembles are used in our enterprise. Advanced auto-controlled system and online quality examination system are also deployed. So we can keep steady quality. The main products of the company are the seamless steel pipes, using the advanced heat and cold processing technology, divides two kinds of hot rolling and cold draw. we mainly produce carbonized structural steel pipe; the low-alloy steel pipe, the bearing steel pipe, and so on. The company can produce many kinds of seamless steel pipes of 25mm~108mm*4mm~20mm; 108mm~560mm*4mm~50mm.