Yuyao Chengzhou Tube Industry Co., Ltd. (No.1 Factory)

Ningbo Yaojiang Tube Industry Co., Ltd.

Ningbo Ounuo Lighting Technology Co., Ltd.

Ningbo Kexing Tube Industry Development Limited Company

Chaoda Hardware Pipeline (Huangjian Shan Business Department)

Zhongcai Pipeline (Huawei School Shop)