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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.
HTT specializes in making high-precision drilling accessories.
We have large inventory for drill bushes, drill bush holders, whip guides, sealing discs and other tool accessories.
All parts can be customer-made. The tolerance is as little as ± 0.005mm, the smallest ID can be 0.3mm. They are for metal, mold, medical equipment, aerospace and other industries.
Drilling range (d) (mm) | O.D. (D) (mm) | Length (L) (mm) |
3.2 | 6 | 12 |
22.02 | 50 | 95 |