HTT, becomes the leader of deep hole drilling & honing solution provider in the world.Machine building factories established in both Germany and China, and over 20 manufacturing units for Job-drilling and machine service in Germany, USA, China and India.Effective service can be provided in short time. Shanghai Ningyuan Precision Machinery Corp. as the manufacturing center of HTT, who was founded in 2006, focusing on drilling technology and innovation. And it did successful IPO in Shanghai. Stock in Aug.2018, with code: 873011. By 2015, over 460 various deep hole drilling machines have been delivered to worldwide, including Germany, Italy, USA, Japan, Russia, Holland, Turkey,South Korea, Brazil, Chile, South Africa, China, India, Bangladesh, etc. Over 100 valued customers in various industries, including aerospace, defense, nuclear, oil and gas exploration, construction machinery, automotive, die mould, pellet mill, glass mould，medical parts, etc.