铸石制品是一种新型的工业材料.以铸石代钢是节约金属材料的一个重要途径.据估计,全国铸石制品如能达到三十万吨,就能代替金属五百万吨.因此,大力提倡生产和推广使用铸石制品,不仅是一个技术问题、经济问题,而是贯彻执行社会主义建设总路线的问题. Casting stone products is a new type of industrial materials to cast steel instead of steel is an important way to save the metal material.It is estimated that the country can reach 300,000 tons of castings if you can replace the metal five million tons.Therefore, vigorously To promote the production and promotion of the use of cast stone products is not only a technical issue and an economic issue but an issue of implementing the general line of socialist construction.