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Zhongke Super Precision (Nanjing) Technology Co., Ltd.

Shanghai Digu Geotechnical Engineer Co.,Ltd.

Ningxia Lgg Instrument Co. Ltd.

Rongcheng Huacheng Rubber Co. Ltd.

Bihebifang Robot (Tianjin) Co., Ltd.

Xiamen Hongkai Electronic Technology Co., Ltd

Masuda Denki KK

Shanghai Hantang Technology Co. Ltd.

Zhejiang Huayuan Steam Turbine Machinery Co.,

Wuhu Truchum Alloy Copper Co. Ltd.

Princess Toraya Co. Ltd.