Nws yog Aerospace series - Six lobe recesses rau bolts - Technical specification; German thiab lus Askiv version EN 3905: 2008
DIN 3905 qhia meej txog qhov yuav tsum tau ua kom tau rau rau 6 lub tsev kawm ntawv uas tau teev tseg los ntawm EN 3911 rau cov xaim yas.
Cov ntawv hais txog kev ua raws:
EN 3911 aerospace
ISO 5855-2 aerospace MJ xov
