ASTM-B209 AMS4027N 6061-T651 dav hlau tus qauvaluminium phajfeem ntau yog siv los ua cov tawv nqaij dav hlau, fuselage thav duab, girders, rotors, propellers, roj tso tsheb hlau luam, phab ntsa panels thiab tsaws iav ncej, nrog rau foob pob ua ntxaij forging rings, spacecraft phab ntsa panels.