Zhengzhou Dayu Machinery Co., Ltd. is a leading construction machinery manufacturer in China, was established in September 1998, Headquarters is located at Zhengzhou, Henan Province, China. Covering above 18, 000 square meters and registering capital of RMB 50 million. Dayu supply construction machinery base on ISO9001, ISO14001 management systems, and are CE, GOST certified.