Henan Yugong Machinery Co., Ltd, located in Zhengzhou, its a large engineering machinery manufacturing enterprise which focus on research and development, production and sale kinds of drilling rigs.Our drilling rigs are widely applicable for water well, farm irrigation, geological prospecting, road construction,pile foundation, geothermal air-conditioner and so on. We insist on the strategy of technology research and development. Technical design, material purchasing, precised manufacturing and strict quality inspection are all processed according to the ISO9001 standard. Sincerely hope we can establish close,trustworthy and long term relationship with each customers. Any interests and needs about our Drilling rigs,please contact us.