NA 121
DIN Standards Committee Tools and Clamping Devices
Standards
[Withdrawn]
ISO 4231
ISO 4231
Hand- and machine-operated circular screwing dies for parallel pipe threads - G series
Title (German)
Hand- und maschinenbetätigte runde Schneideisen für zylindrisches Rohrgewinde
Responsible national committee
NA 121-01-04 AA - Taps and dies