Specification for aircraft material. Carbon steel bright bars for machining (35/45 tonf/sq in; maximum size, 4 inches diameter or minor sectional dimension)
国外标准现行
标准号:7S 1-1964
标准名称: 航空材料规范.机械加工用碳素钢光亮冷拔棒材
英文名称:Specification for aircraft material. Carbon steel bright bars for machining (35/45 tonf/sq in; maximum size, 4 inches diameter or minor sectional dimension)