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Nanjing T-Bota Scietech Instruments & Equipment Co., Ltd.
Shenzhen Handsome Technology Co., Ltd.
Zhengzhou CY Scientific Instrument Co., Ltd.
Laizhou Weiyi Experimental Machinery Manufacture Co., Ltd.
Piezohannas Tech (Wuhan) Co., Limited
Shenzhen Bonad Instrument Co., Ltd.
Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.
Guangzhou Haike Outdoor Sport Co., Ltd.
Yueqing Haixin Electronic Science Technology Co., Ltd.
Leader Precision Instrument Co., Ltd.
Shenzhen Pride Instrument Inc.
Shanghai RuiBiao Construction Machinery Co., Ltd.
Sino Age Development Technology