HB 4-21-1999
Type A tee pipe joint (English Version)
- Standard No.
- HB 4-21-1999
- Language
- Chinese, Available in English version
- Published By
- Professional Standard - Aviation
- Status
- 2003-02
- Replace By
- HB 4-21-2002
- Latest
- HB 4-21-2002
HB 4-21-1999 history
- 2003 HB 4-21-2002 Tee,A type,flared tube
- 1970 HB 4-21-1999 Type A tee pipe joint
- 1984 HB 4-21-1983 Type A tee pipe joint
- 1973 HB 4-21-1976 Type A tee pipe joint
