ironingot铁锭
puddlediron搅炼熟铁
roundiron圆铁
scrapiron废铁
steel钢
crudesteel粗钢
mildsteel,softsteel软钢，低碳钢
hardsteel硬钢
caststeel坩埚钢，铸钢
stainlesssteel不锈钢
electricsteel电工钢，电炉钢
high-speedsteel高速钢
mouldedsteel铸钢
refractorysteel热强钢，耐热钢
alloysteel合金钢
plate,sheet薄板
corrugatediron瓦垅薄钢板
tinplate,tin马口铁