Tianjin Hanfurong Steel Material Trading Co., Ltd. (Hanjiashu Steel Material Market Shop)

Tianjin Hengxinxin Steel Material Sales Co., Ltd.

Tianjin Chengjuxin Iron and Steel Co., Ltd.

Tianjin Xinmao Huafeng Technology Co., Ltd.

Tianjin Luchengxin Steel Trading Co., Ltd.

Tianjin Kuansheng Steel