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