ＨＢ５３４３《铸造工艺质量控制标准》修订前后的对比分析北京航空材料研究所刘世兴ＨＢ５３４３８６《铸造工艺质量控制标准》自１９８７年颁布实施以来，经多年实践反映，该标准内容比较详细、技术要求先进合理，标准的实施对控制、稳定和提高铸件质量，为技术改造、加... HB5343 “casting process quality control standards,” before and after the comparison of the revised Beijing Institute of Aeronautic Materials Liu Shixing HB534386 “casting process quality control standards” promulgated since 1987, since many years of practice reflect the content of the standard is more detailed, advanced and reasonable technical requirements, Standard implementation of the control, stability and improve the quality of castings, for technological innovation, plus ...