Qingdao Hagongliang Industry and Trade Co., Ltd.

Qingdao Jinyuan Jiacheng Trading Co., Ltd.

Qingdao Jihe Numerical Control Cutter

Qingdao Ruide Sa'en Trading Co., Ltd.

Qingdao Chengdeyuan Trading Co., Ltd.

Chengliang Tool (Huizhou Road Unit Shop)