Ningbo Guanya Construction Machinery Co., LTD. Is located in Ningbo Economic and technological development zone, Zhejiang Province. It is an independent company of Ningbo Bangli Hydraulic Transmission Co., LTD. For crawler chassis. We only focus on tracked chassis, service in the high-end market, to provide customers with customized quality products. The technical personnel of the company have been engaged in the field of crawler chassis for many years, and can professionally design and manufacture various non-standard crawler chassis assemblies and hydraulic control systems.