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北京市测绘用品厂的废尺条和废尺簧,过去一直作为废物处理,现在被活动房屋厂用来连接固定混凝土板,代替钢筋,效果很好。不仅增加了建筑活动房屋的部分材料,该厂也因
The waste ruler and the waste ruler spring of the Beijing Surveying and Mapping Supplies Factory have been used as wastes in the past and are now used by mobile homes to connect fixed concrete plates instead of steel bars. Not only did it increase some of the materials for the construction of mobile homes, the