Ningbo Yisheng Fastener Co., Ltd.

Ningbo Xinlun Numerical Control Cutter Co., Ltd.

Ningbo Xinbenhui Copper Industry Co., Ltd.

Ningbo Jixin Fastener Co., Ltd.

Ningbo Jiangdong Gumao Fastener Co., Ltd.

Ningbo Lingbang Energy Conservation Building Materials (Dulux Application Center)