Qiansheng Hardware Biaozhunjian

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

Zhengzhou Xiangyu Hardware Biaozhunjian Jiao

Gem-Year Fastener World (Guibi Road Shop)

Zhengzhou Xingang Standard Element Co., Ltd.

Henan Dayang Standard Element Co., Ltd.