利用球墨铸铁筋代替钢筋制作混凝土模件,这是世界的创举。这项生产任务的研究,不仅要解决我校建筑工程公司缺乏钢材的问题,而且由于铸铁筋的制造工艺比较简单,成本低廉,将来县县乡乡都能生产;同时球墨铸铁筋的强度很高,不愧为一种新型的钢筋代用材料。所以这项生产研究,实具有? The use of ductile iron bars instead of steel bars to make concrete modules is the world’s pioneering work. The study of this production task not only needs to solve the problem of the lack of steel in our school construction engineering company, but also because the manufacturing process of cast iron tendons is relatively simple and the cost is low, and it can be produced in counties and counties in the future; at the same time, the strength of ductile iron bars is high. It is worth noting that it is a new type of reinforcement substitute material. So this production study actually has?