Mr. Yang Dejing, the inventor of the Kaifeng series full hydraulic wheel type integrated drilling rig and the chairman of Kaifeng Company, together with all the staff of the company, sincerely invite friends from all walks of life to visit and cooperate. We will provide you with excellent drilling rigs with superb technology, and provide intimate and comfortable service for your business. Let the customers buy the peace of mind, the use of peace of mind, and the comfort of our work is our unremitting pursuit!