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最近,美国国家混凝土砌筑协会(NCMA)对一种混凝土砌块生产新技术进行了研究,在此基础上,可以用传统的砌块成型机生产各种形式的砌块。这些新块型的砌块,以前在技术
Recently, the National Association of Concrete and Masonry (NCMA) has conducted a study on a new technology for the production of concrete blocks. Based on this, it is possible to use traditional block forming machines to produce various types of blocks. These new block blocks were previously in technology