一 大型机床(包括大型金属切削机床,锻压机床、铸造机械),是促进钢铁发展的设备,同时,它又大量消耗着钢铁。造出一台矿石粉碎机可以代替数百人的体力劳动,这种大型冶金设备要大型机床制造,各种大型机器的制造都需要机床,因此大型机床的发展更有利于加速钢铁发展,所以对大型机床 A large-scale machine tool (including large-scale metal-cutting machine tools, forging machine tools, and foundry machinery) is an equipment that promotes the development of steel. At the same time, it also consumes a large amount of steel. The creation of an ore crusher can replace hundreds of people’s manual labor. This large-scale metallurgical equipment is required to be manufactured by large-scale machine tools, and the manufacture of various large-scale machines requires the use of machine tools. Therefore, the development of large-scale machine tools is more conducive to the acceleration of steel development. Large machine tools