YSJ 021-1993
Code for shaft and drift design of non-ferrous metal nines (English Version)

Standard No.

YSJ 021-1993

Language

Chinese, Available in English version

Published By

Professional Standard - Non-ferrous Metal

Latest

YSJ 021-1993

YSJ 021-1993 history

• 1970 YSJ 021-1993 Code for shaft and drift design of non-ferrous metal nines