QJ 2142-1991
Heat Treatment of Ultra High Strength Steel (English Version)

Standard No.

QJ 2142-1991

Language

Chinese, Available in English version

Release Date

1991

Published By

Professional Standard - Aerospace

Latest

QJ 2142-1991

QJ 2142-1991 history

• 1991 QJ 2142-1991 Heat Treatment of Ultra High Strength Steel