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Standard Insuued on: 1997-08 |
Category No.: | GB | Valid Status: | superseded |
Issued Organization: | CMIF | Issued Date: | 1997-08-28 |
Implemented Date: | 1998-6-1 | Abolished Date: | |
Superseded Standard.: | GB/T 6138.2-2007 Subland twist drills for holes prior to tapping screw threads -Part2:The types and dimensions of Subland twist drills with Morse typer shanks |
Superseded Date: | 2007-11-1 |
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