HB 790-1973
6-8 grades of accuracy with a double-headed sheet groove gauge B = 0.5-50mm (English Version)

Standard No.

HB 790-1973

Language

Chinese, Available in English version

Release Date

1974

Published By

Professional Standard - Aviation

Status

Withdraw

Latest

HB 790-1973

HB 790-1973 history

• 1974 HB 790-1973 6-8 grades of accuracy with a double-headed sheet groove gauge B = 0.5-50mm