Qinhuangdao Kaiyan Machinery Equipment Co., Ltd.

Qinhuangdao Yicheng Mechanical & Electrical Equipment Co., Ltd.

Ruiling Welder (Heping Street Branch)

Beijing Pumps Mechanical and Electrical Company (Jinlong Flower Garden Shop)

Baiyi Electric Engine (Jinlong Flower Garden Shop)

Chiheng Mechanical and Electrical Equipment Company