Magnetic valley WeChat public science and technology
Nanjing magnetic Valley Technology Co., Ltd., established in August 2008, registered in Nanjing Jiangning Development Zone, is China's first high-speed friction-free transmission system - magnetic bearings ...
On the afternoon of March 17, 2016, the leaders of 。。。
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By the Nanjing Jiangning Development Zone enterpris。。。
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