Dalian Zhaohua Construction and Machinery Co., Ltd integrates four-rollers & one-link, machines and accessories into a whole, located in Laiwu City shandong Province, covering 50 thousand square meters, with more than 300 sets of equipment & over 600 staff, some of whom are professors of university and senior engineers, In addition, we have advanced processing apparatus and manufacturing works including six forging assemblies, six CNC machining centers, four thermal treatment lines and forging moulds processing and testing detection machine with high automation and advanced technology dominates ***** only design of product, forging, cutting processing, thermal treatment, but also track link assembly, it forms a complete manufacturing and processingassembly with annual production capacity of 50 thousand track links, 2million creeper tread, At aprsent, dozens of link pitches and over 200 types of products have been developed.Under the guidance of scientific management, the process of production has stricktly supervised by ISO9001:2000.We keep a long-term cooperation of supplying the parts for many machines manufacturers, and also export to Southeastern Asia and Europe & America.