关于改革普通粘土砖砖型的设想

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关于改革普通粘土砖砖型的设想姚宗礼,牛桂云(铁道部北京二七通信工厂)(铁道部铁三局科技处)我国普通粘土砖(简称普通砖)的标准规格尺寸为240mm×115mm×53mm,但现行普通砖的标准尺寸存在一些问题,有待加以改进,现提出探讨如下。1现行普通砖标准...
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