Zhangjiagang Tianyun Construction Machinery Co., Ltd. (originally named Zhangjiagang City Construction Machinery Factory) is established in 1988. Our company is a special company which engages in designing and manufacturing of tower cranes. 
With more than twenty years of development, our company owns national famous experts and a group of professional engineers and technicians, abundant technical force, advanced technological equipment and perfect quality management system. Additionally, we have a first -rate design capacity with over thirty years' scientific research experience in the industry. Our QTZ series tower cranes have National Industrial Product Production License and Jiangsu Province Crane Manufacturing Safety License, and we have got gold medal in Nanjing International Construction Machinery, Construction Material and New technology exhibition. Our products have passed random examination conducted by General Administration of Quality Supervision, Inspecition and Quarantine of the People's Republic of China (AQSIQ) continuously for many years. 
Our products have been received in reliability, practicality and high cost-effective rate. As a result, the popularity and occupancy has been increasing year by year. 
Our company is located in Zhangjiagang City, Jiangsu Province, 120km from Shanghai.