
Dongying Tianzheng Chemical Co., Ltd.

Liaoning North Environmental Protection Co., Ltd.Liaoning Sheng, China

Hangzhou Shuodian Technology Co., Ltd.

Tianjin Dingzhan Petroleum Machinery Co., Ltd.Tianjin Shi, China

Junsheng Technology (Qinzhou) Co., Ltd.Guangxi Zhuangzu Zizhiqu, China

Xiamen Kehuan Marine Biotechnology Co., Ltd.Fujian Sheng, China

Longkou Shengyuan Machinery Parts Co., Ltd.

Tianjin Ultrasonic Technology Co., Ltd.Tianjin Shi, China

Dujiangyan Jiayu Trading Co., Ltd.Sichuan Sheng, China

Dan Science Co. Ltd.Japan

Dongtai Haipeng Ship Parts Co., Ltd.Jiangsu Sheng, China

Longquan Guyou Automation Equipment Co., Ltd.Zhejiang Sheng, China