Hangzhou Huajun Hardware and Building Materials Co., Ltd.

Hangzhou Meicaijia Building Materials

ERA Pipeline (Nanfang Mechanical and Electrical Market Branch)

Pipe Fittings Valve (Nanfang Mechanical and Electrical Market Branch)

Huamei Heat Preservation Material (Nanfang Mechanical and Electrical Market Branch)

Hangzhou Zhengyi Building Materials Falsework Business Department