SY 5049-1991
Drilling slips (English Version)
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SY 5049-1991
Standard No.
SY 5049-1991
Language
Chinese,
Available in English version
Release Date
1991
Published By
能源部
Latest
SY 5049-1991
SY 5049-1991 history
1991
SY 5049-1991
Drilling slips
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