AMS 4617, 7075-T73511 Bar, B221 알루미늄 환봉
AMS 4617, 7075-T73511 Bar, B221 알루미늄 환봉
STEELMAX Metal Story
AMS 4617 규정은 AL 7075-T73511, T73, T73510,
AMS 4617, 7075-T73511 Bar, B221 알루미늄 환봉
STEELMAX Metal Story
AMS 4617 규정은 AL 7075-T73511, T73, T73510,