现将有关原国家标准局和冶金工业部颁行的航空用黑色金属材料标准的修改通知摘编如下,望我部各公司、厂、所(院、校)冶金和器材部门在订货和验收过程中按修改后的条文贯彻执行。 Now the original National Bureau of Standards and the Ministry of Metallurgical Industry issued by the aeronautical use of ferrous metal materials, the standard notice of modification as follows, I hope the ministries and companies, factories, ((school, school) metallurgy and equipment sector in the ordering and acceptance process According to the revised provisions of the implementation.