Beijing Agricultural Machinery Institute
Jingpeng Husbandry Company, China. **
Gaotang Double Dragon Feeding Equipment
Co. Ltd., China. **
Qingdao Tianrui Farming Co. Ltd., China.
Ningbo United Group Imp & Exp Co.
Ltd., China.
Ningbo Yinzhou Binhai Farming Instruments
Factory, China.
Shaanxi Shuang Herrs Co. Ltd., China.
**