Ricoh Unitechno Co. Ltd.
Puning Yuanfeng Electric Appliance Co. Ltd.
Dino Holding GmbH
Wenzhou Aole Safety Equipment Co., Ltd.
Suzhou Okeluo Electronic Technology Co., Ltd.
Qingdao Kangtaixin Environmental Protection Technology Co., Ltd.
Hubei Jiangshan Heavy Industry Co. Ltd.Hubei Sheng, China
Nanjing Fremont Measurement and Control Technology Co., Ltd.
King Tsushin Kogyo Co. Ltd.Tokyo, Japan
Shanghai Dingyin M&E Equipment Co., Ltd.
Laporte
Zhenjiang Agricultural Science Research Institute in Jiangsu Hilly Area