EN 4632-1. Aerospace series. Welded and brazed assemblies for aerospace constructions. Weldability and brazeability of materials. Part 1. General requirements
EN 4632-1 航空航天系列 航空航天结构用焊接和钎焊组件 材料的焊接性和钎焊性 第一部分 一般要求
发布日期:
2006-02-17
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