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在工业发达国家商品砼已形成一个独立的行业,到目前为止,世界上商品砼的生产总量已达到砼总量的70%以上,瑞典、日本等国已达到90%,因此,二次世界大战后,商品砼的生产和砼输送泵的应用被称之为施工技术革命性的变化。商品砼的特点有以下几个方面。 1.砼商品化工厂以经销砼为特征,为了满足市场需要,品种繁多,送货上门,昼夜经营。一般有30～50种不同的配比,大型砼工厂有的多达300～500种,以供客户选用,并且随机打印出配比、数量、客户名称
In the industrialized countries, the commodity market has formed an independent industry. So far, the total production volume of commodity plutonium in the world has reached more than 70% of total plutonium, and Sweden, Japan and other countries have reached 90%. Therefore, the second world After the World War II, the production of commercial rakes and the use of helium transfer pumps were called revolutionary changes in construction technology. The characteristics of commodities are as follows. 1. 砼 Commercial chemical factories are characterized by distribution tactics, in order to meet the needs of the market, a wide variety of goods, door-to-door, day and night operations. There are generally 30 to 50 different proportions, and there are as many as 300 to 500 kinds of large-scale factory, for customers to choose, and randomly print the ratio, quantity, customer name