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Shanghai AEAD Technology Co., Ltd.
Guangzhou Basic Intelligence Technology Co., Ltd.
Yuyao Zhenxing Flowmeter Instruments Factory
Beijing ZhongRuiZhiCheng Technology Co., Ltd.
Guizhou Pilot Precision Instruments Manufacturing Co., Ltd.
Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.
Zhejiang Sealand Technology Co., Ltd.