Ningbo Sanwei Hardware Technology Co., Ltd. Zhongguan Business Department

Xintengtao Building Materials Firm (Zhongguan Commercial Plaza Unit B Branch)

Ningbo Zhonglang Building Materials Co., Ltd.

Hongnai Stainless Steel

Zhengfa Stainless Steel (Huadong Materials City Shop)

Jiajie Stainless Steel (Zhongguan Commerce Plaza Branch)