50岁四川熟女露脸A片_小伙口味重嫖老熟女_中国农村老熟女2_淑芬好爽?好紧?宝贝别夹视频_稚嫩的小奶头被咬得又红又肿_小莹好大?用力?深一_揉我奶?啊?嗯高潮和尚_苏媚与公做了一夜伦理_和公在厨房做.我受不了了_老头解开奶罩吸奶头高潮视频,国产成人午夜爽爽爽视频2020,亚洲欧美一区二区三区孕妇写真,美女的奶被揉来揉去揉出水了

about US

Shanghai Ningyuan Precision Machinery Corp.

Hochent (Shanghai) Machinery Development Co.,Ltd.

WE PROVIDE DEEP HOLE DRILLING SOLUTIONS

HTT, becomes the leader of deep hole drilling 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. 

Please visit our website for more information.