about us Zhengzhou Dayu Machinery Co., Ltd. is a leading structural machinery supplier in China, was established in September 1992, Headquarters is located at Zhengzhou, Henan Province, China. Covering above 18, 000 square meters and registering capital of RMB 50 million.. Dayu supply structural machinery base on ISO9001, ISO14001management systems, and are CE, GOST certified Business scope: drilling rig, water well drilling rig, borehole drilling machine, rock drilling machine, crawler drilling rig, hydraulic drilling rig, borehole drilling machine and so on.

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