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Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.
ADST TECHNOLOGY CO., LTD.
Shenzhen Sunyuan Technology Co., Ltd.
SHAOXING KARE INSTRUMENT EQUIPMENT CO., LTD.
Biobase Biodustry (Shandong) Co., Ltd.
Jiangsu Tianyuan Experiment Equipment Co., Ltd.
Ningbo Shunjay Instruments Co., Ltd.
SICHUAN NEW TIANYUAN TECHNOLOGIES CO., LTD.
Nanjing Kehua Instrument & Meter Co., Ltd.
Shenzhen Bonad Instrument Co., Ltd.