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Hebei Xukang Meter Manufacturing Co., Ltd.
Labmen Instrument Limited
Weifang Greatland Machinery Co., Ltd.
Jiangsu Tianyuan Experiment Equipment Co., Ltd.
Movel Scientific Instrument Co., Ltd.
Shanghai Cixi Instrument Co., Ltd.
Zhangjiagang Chuangpu Machinery Co., Ltd.
Wenzhou Luosimeng Machinery Co., Ltd.
Rigchina Group Company