按照建材行业的产品标准《烧结多孔砖》（GB13544—92），模数多孔砖的外形尺寸为19Omm×190mm×90mm，对孔洞的排列形式及数量未提具体要求，但对孔洞尺寸作出如下规定：圆孔直径不应大干22mm；非圆孔内切圆直径不应大于15mm；手抓孔应为（30～40）mm×（75~85）mm。60、70年 According to the product standard of the building materials industry, “sintered perforated brick” (GB13544-92), the external dimensions of the modular perforated brick are 19Omm × 190mm × 90mm. There is no specific requirement for the arrangement and quantity of the holes, but the following regulations are made for the size of the holes: : The diameter of the round hole should not be more than 22mm; the diameter of the noncircular hole inscribed circle should not exceed 15mm; the grip hole should be (30~40)mm x (75~85)mm. 60, 70 years