Gangmu use steel body structure security doors door frames, with a few roots in the wall to strengthen steel fixed, and the things are sealed steel, and there were trilateral Fangqiao margin.

• 钢木结构的防盗门使用钢体门框，装了数根加强钢筋固定在墙体重，门扇的前后均是密封的钢板，而三边则有防撬边。