SY 5248-1991
Drilling well falling objects salvage method (English Version)

Standard No.

SY 5248-1991

Language

Chinese, Available in English version

Release Date

1991

Published By

能源部

Latest

SY 5248-1991

SY 5248-1991 history

• 1991 SY 5248-1991 Drilling well falling objects salvage method