HB 509-1989
Column (600×900×1000) (English Version)

Standard No.

HB 509-1989

Language

Chinese, Available in English version

Release Date

1989

Published By

Professional Standard - Aviation

Latest

HB 509-1989

Replace

HB 509-1974

HB 509-1989 history

• 1989 HB 509-1989 Column (600×900×1000)
• 1970 HB 509-1974 Column (600×900×1000)