基于扩大铸造利润空间的目的，探讨大比例废钢冲天炉的熔化特点、操作及其结构问题，供有关铸造工作者参考。
To enlarge the profit of casting, the paper explores the melting character, operation and structure of the cannon stove for big scale waste steel to give information to someone doing casting work.
公司与众多钢铁厂、不锈钢厂、铸造厂等有良好的合作关系，以至于对废钢、废铁回收有着非常好的价格优势。
With a number of steel plants, steel plants, foundries, etc. have a good relationship, so that pairs of steel scrap, scrap metal recycling has a very good price advantage.
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