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Railway Technical Research InstituteJapan

Shandong Aiersheng Intelligent Technology Co., Ltd.Shandong Sheng, China

Sinoma Jiangxi Electric Porcelain Electric Co., Ltd.Jiangxi Sheng, China

Windix Industries Ltd.

Haiyang Libenli Body-building Apparatus Co., Ltd.

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Zhejiang Zhenan Alloy Manufacturing Co. Ltd.

Shenzhen Cooler Intelligent Technology Co., Ltd.Guangdong Sheng, China

Shanghai Rail Traffic Equipment Development Co., Ltd.

China Railway 20th Bureau Group 4th Engineering Co., Ltd.

Dehaha Compressor Jiangsu Co., Ltd.