我厂的小型万能热风炉(见右图)有两个水冷却热风嘴,日产量一般在10吨左右,最高是15吨,生产周期一般可达七昼夜,最高曾达到十二昼夜.现在质量也比过去有很大提高.灰口率一般可达90%上.在伟大的钢铁战役中,有力地支持了生产,克服了严重的原材料不足的困难.现在它又投入了炼矿铁运动.不但本厂 Our small universal hot stove (see photo to the right) has two water-cooled hot blast nozzles with a daily output of about 10 tons and a maximum of 15 tons with a production cycle of up to seven days and nights and a maximum of twelve days and nights. It is also much larger than in the past, with a gray-to-gray ratio of up to 90%. In the great steel battle, which strongly supported production and overcame the severe shortage of raw materials, it is now investing in iron ore mining. Not only the factory