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ADST TECHNOLOGY CO., LTD.
Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.
Shanghai Galaxy International Trade Co., Ltd.
Zhejiang NCR Industrial Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
SICHUAN NEW TIANYUAN TECHNOLOGIES CO., LTD.
Nanjing Kehua Instrument & Meter Co., Ltd.
Shenzhen Bonad Instrument Co., Ltd.
Ningbo Shunjay Instruments Co., Ltd.
Shenzhen Sunyuan Technology Co., Ltd.
SHAOXING KARE INSTRUMENT EQUIPMENT CO., LTD.
Jiangsu Tianyuan Experiment Equipment Co., Ltd.