HB 4049-1988
B type junction pillar (English Version)
- Standard No.
- HB 4049-1988
- Language
- Chinese, Available in English version
- Release Date
- 1988
- Published By
- Professional Standard - Aviation
- Latest
- HB 4049-1988
HB 4049-1988 history
- 1988 HB 4049-1988 B type junction pillar
