LY 1200-1997
Sawn timber for drill frame (English Version)

Standard No.
LY 1200-1997
Language
Chinese, Available in English version
Release Date
1997
Published By
Professional Standard - Forestry
Status
 2012-07
Replace By
LY/T 1200-2012
Latest
LY/T 1200-2012
Scope
This standard specifies machine wood species, dimensions, tolerances, defect limits and inspection methods. This standard is applicable to special materials for drilling rig skids in oil fields, mines, and geological departments.

LY 1200-1997 history

LY 1200-1997 Sawn timber for drill frame was changed to LY/T 1200-2012 Sawn timber for drill frame .




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