HB 778-1973
1-8 grades of precision use conical tail measuring head double-headed smooth plug D>3-30mm (English Version)

Standard No.

HB 778-1973

Language

Chinese, Available in English version

Release Date

1974

Published By

Professional Standard - Aviation

Status

Withdraw

Latest

HB 778-1973

HB 778-1973 history

• 1974 HB 778-1973 1-8 grades of precision use conical tail measuring head double-headed smooth plug D>3-30mm