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Qidong Perfect Precise Tools Co., Ltd.
Shanghai Aucy Scientific Instrument Co., Ltd.
CNBMIT Co., Ltd.
Canfort Laboratory and Education Supplies Co., Ltd.
Shanghai Lumsail Industrial Inc.
Shanghai RuiBiao Construction Machinery Co., Ltd.
Jinjiang Jiaxing Group Co., Ltd.
Movel Scientific Instrument Co., Ltd.
VY Optoelectronics Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.
Shenzhen Haiwang Sensor Co., Ltd.