Taiyuan Tongze Heavy Industry Co., Ltd was set up on August, 2001. It is a company who undertakes equipment manufacturing for seamless pipe, extrusion equipment, special equipment for military and precision mould. It is a profesion company for turn-key project and international trade business of the above machine. It has rich experience in designing, manufacturing, installation and commissioning of large seamless pipe production line.

Technology center of Taiyuan Tongze is a National Technology Center. As a New and high technology enterprise, Taiyuan Tongze is the fourth group of intellectual property pilot project, innovation company of Shanxi province and "hundred potential companies" of industrial transformation development in Shanxi province.

Taiyuan Tongze is a industrialization base of high level pipe industry in China. It is the director unit of Chinese Mechanical Engineering Society and China Heavy Machinery Industry Association. It is also one of draft unit of China metallurgical equipment standard.

Headquarter and R&D center of Taiyuan Tongze is in State Level Taiyuan Economic and Technological Development Zone. Its assembly base is in State Level High-tech Development Zone in Wuxi New District, China. Registered capital of 47 million RMB with more than 750 employee.

Main products of Taiyuan Tongze are Retained mandrel continuous rolling production line, Rotary expander, stainless extrusion line, big size pipe forging piercing press and extrusion, special barrel-type piece production line, Oil drill pipe production line, oil casing pipe heat treatment line. Finishing line for seamless pipe, threading processing line of oil pipe, and other processing line including length and weight measuring and marking and extrusion precision die for shield cable. Our products can produce pipe diameter range from Φ 32mm to Φ 1500mm, WT range from 3.2mm to 200mm.

Taiyuan Tongze insists strategy of "Talent, Innovation, Dedication" to train and cultivate innovative talents to promote development through innovation. We have a R&D team of more than 160 employees from China, Germany and India, etc. The whole technical center divided into 16 team as per their different technic profession. Their continuous innovation to form the core technology and key technologies with independent intellectual property rights. Until end of 2011, we applied more than 200 item patents, includes 84 patent of invention. More than 100 patents already authorized by the Country. We have 3 Shanxi brand name products, 9 registered trademark, and involved to draft 9 industry standards. Taiyuan Tongze has 5 professional subsidiary companies which including machinary manufacturing and assembly (equipped with the China biggest five-axis digital bridge milling 6000× 6000× 17000mm and double carriage 200T crane), electric control equipment plant which cooperate with Germany Siemens and hydraulic equipment plant, etc.

After independent innovation and hard work for more than ten years, Taiyuan Tongze realized localization and industrialization of seamless pipe continuous hot rolling line. 2 rolls and 3 rolls continuous rolling line which developed by us reached international advanced level. Φ 114mm 2 rolls continuous rolling line awards first prize of Taiyuan technology progress. Φ 250mm 2 rolls continuous rolling line awards first prize of Shanxi province technology progress. Φ 366mm 3 rolls continuous rolling line has identified of provincial level technology achievements and new products technology. Taiyuan Tongze exported Φ 180mm continuous rolling mill to India. It is a milestone for China to export seamless pipe equipment. Taiyuan Tongze successfully developed the first extrusion line of 36MN for stainless steel, then in 2011, Taiyuan Tongze understook R&D work of 12500/3500KN combined oil press.