Shengfeng Hardware Biaozhunjian (China South City Building Materials Exchange Center 6A Unit Shop)

Yuxing Hardware Biaozhunjian

Qiansheng Hardware Biaozhunjian

Xinwang Hardware Biaozhunjian (China South City Building Materials Exchange Center 6A Unit Shop)

Zhengzhou Zhongyang Metal Products Co., Ltd.

Yitong Standard Element (Zhejiang Hardware Engine Electric Town 7 Unit B Branch)