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Qingdao Tlead International Co., Ltd.
Piezohannas Tech (Wuhan) Co., Limited
Nanjing T-Bota Scietech Instruments & Equipment Co., Ltd.
Laizhou Weiyi Experimental Machinery Manufacture Co., Ltd.
Shenzhen Handsome Technology Co., Ltd.
Zhengzhou CY Scientific Instrument Co., Ltd.
Leader Precision Instrument Co., Ltd.
Guangzhou Haike Outdoor Sport Co., Ltd.
Yueqing Haixin Electronic Science Technology Co., Ltd.
Dongguan City Gaoxin Testing Equipment Co., Ltd.
Shenzhen Bonad Instrument Co., Ltd.
Shanghai HongWei Construction Machinery Co., Ltd.