HB 4-57-1987
Round section rubber ring sealing structure (English Version)

Standard No.

HB 4-57-1987

Language

Chinese, Available in English version

Published By

Professional Standard - Aviation

Latest

HB 4-57-1987

Replace

HB 4-57-1976

HB 4-57-1987 history

• 1970 HB 4-57-1987 Round section rubber ring sealing structure
• 0000 HB 4-57-1976