GB/T 6138.1-2007

Subland twist drills for holes prior to tapping screw threads—Part 1:The types and dimensions of subland twist drills with cylindrical shanks

NORMA vydaná dňa 25.6.2007

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The information about the standard:

Designation standards: GB/T 6138.1-2007
Note: NEPLATNÁ
Publication date standards: 25.6.2007
Country: Chinese technical standard
Kategória: Technické normy GB