Yu Jin
Fujian Henglong Plastic Industrial Co., Ltd.
Kunshan Tiesheng Machinery Co. Ltd.
Tip Engineering Group, Inc.United States
Yancheng Xingda Wave Tube Co., Ltd.
Dongguan Shiying Electronic Co. Ltd.
Gradient Technologies LLCTennessee, United States
Jiangxi Zili Environmental Protection Technology Co. Ltd.Jiangxi Sheng, China
Longyan Shanghang Yilong Photoelectric Technology Co., Ltd.
Beijing Haiyuexing Technology Co., Ltd.
Zhejiang Zhongbei Machinery Co., Ltd.
Hydrogeology Bureau of China Coal Geology Administration