We have over 11 years' experience in exporting drilling rig machines! We are the biggest supplier providing the best prices and quality! Zhengzhou Han Fa Imp& Exp Trading Co., Ltd ,established in 1998, is the subsidiary of Zhengzhou Reconnessance Machinery Co., Ltd. concentrated with scientific research & development, production and marketing. Besides,according to the newest requirements of users , we absorbs the advanced technology from abroad and to meet different products. We has independent rights of import and export.