Shandong TIANRUI Heavy Industry Co., LTD is the famous national high technology enterprise with 44 patents, which is specialized in researching, designing and manufacturing mining tools and construction tools.TIANRUI lies in Weifang Shandong, China. We have an innovative R&D team with 30 staffs and 10 senior engineers. We provide Pneumatic rock drills, Hydraulic breakers and Chisel, Grout Pumps, DTH hammers and Drill bits, etc. The products have been exported to over 10 countries. We have advanced equipments, technology, excellent quality and good service with ISO9001:2008, CE and MA certifications.With the best service, creditability and good quality, we continue to develop to meet more requirements of different customers.