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Shanghai Xinyi Education Technology Co., Ltd.

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Shanghai Dingsheng Automotive Equipment Co., Ltd.

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Labmen Instrument Limited

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Jinan Wangtebei Instrument and Equipment Co., Ltd.

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Jinan Fortune Precision Machinery Co., Ltd.

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VY Optoelectronics Co., Ltd.

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Ningbo Hi-Tech Park Bolin Technique Co., Ltd.

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Zhengzhou Nanbei Instrument Equipment Co., Ltd.

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Junhong Electronic & Technology Co., Ltd.

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Shanghai Galaxy International Trade Co., Ltd.

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Beijing United Test Co., Ltd.

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Zhejiang Tugong Instrument Co., Ltd.

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Biobase Biodustry (Shandong) Co., Ltd.

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Yuyao Dingsheng International Trade Co., Ltd.

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Sinowon Innovation Metrology Manufacture Limited

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Jinan Moral International Co., Ltd.

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Huanghua Guangming Instrument Co., Ltd.

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Junhong Electronic & Technology Co., Ltd.

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Jiangsu Jingzhongjing Industry Coating Equipment Co., Ltd.

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Shenzhen Handsome Technology Co., Ltd.