Henan Rancheng Machinery Co.Ltd is located in Zhengzhou City, Henan Province who is dedicated in designing and manufacture drilling rigs ,mud pump air compressor and drilling tools etc.,brour company covers 20>000 square metersthere are over 200 employees,more than 20 techniciansand over 100sets of various manufacturing equipment,including large scale forcing press machinedigital lathe,digital wire-electode cutting equipment various processing machines and equipment etc. ,brwe have a full set of manufacturing techniques and complete quality control devices >our company owns national patents and proprietary technology with independent intellectual property rightwe has a professional team of engineers with rich experience in the design,production and inspectionbr