Draft Document - Aerospace series; heat resisting alloys produced from atomized powder, powder, compacted forging stock and and parts; technical specification; part 4: pre-production and production parts
文件草案——航空航天系列;由雾化粉末、粉末、压实锻坯和零件制成的耐热合金;技术规范;第4部分:预生产和生产零件