
Hangzhou Jiulong Machinery Manufacturing Co., Ltd.Zhejiang Sheng, China

Reprogen, Inc.California, United States

Tongling Hengxing Copper Industry Co. Ltd.

Shandong Shuoli Machinery Manufacturing Co., Ltd.Shandong Sheng, China

Jiyuan Petroleum Machinery Co., Ltd.Henan Sheng, China

Authentic Co. Ltd.Japan

Guangzhou Keruida Optoelectronics Technology Co., Ltd.Guangdong Sheng, China

Tangshan Industrial Vocational Technical CollegeHebei Sheng, China

Alexander Kozak

Richtron Switzerland Holding Co., Ltd

Jiangsu Kaifu New Material Technology Co., Ltd.

Shaoyang Bailong Bamboo and Wood Co., Ltd.Hunan Sheng, China