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On April 21, 2016, another invention patent of high wind pressure down the hole impactor of Tianrui Heavy Industry was authorized by the State Intellectual Property Office.
Since 2015, the company has increased the research and development of high wind pressure DTH impactors, and the product models have increased from 6 to 13. Through technical research, the impactor produced by Tianrui heavy industry has the characteristics of high impact efficiency, low air consumption, low pressure drop and good wear resistance. Its service performance and service life have reached the domestic advanced level and have won the general recognition of users.
Visit Tianrui heavy industry to investigate Shandong Tianrui Heavy Industry Co., Ltd
重磅发布！天瑞重工获山东省专利一等奖，董事长李永胜外籍院士获山东优秀发明家奖
山东省质量强省及名牌战略推进工作领导小组莅临天瑞重工实地核查质量工作开展情况