NA 121
DIN Standards Committee Tools and Clamping Devices
DIN 20311 [CURRENT] references following documents:
Document number | Edition | Title |
---|---|---|
DIN ISO 2768-1 | 1991-06 | General tolerances; tolerances for linear and angular dimensions without individual tolerance indications; identical with ISO 2768-1:1989 More |
DIN 20314 | 1990-06 | Screw threads for drill tubes will diameters exceeding 100 mm for large hole boring in mining More |