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观看小提示:[DVD标清版] [BD超清版] [HD高清版] [TS抢先版:不清晰]
类型：纪录片,短片 地区：苏联 年份：1971
The film fragment shows a general view of the open-hearth shop, the device of a 900-ton open-hearth furnace, the essence of the redox processes occurring in the furnace is considered. The fragment is mounted on the basis of the film "Fundamentals of blast-furnace steelmaking" (Sverdlovsk Film Studio)关键词：