small aluminum material small aluminum single-side super light box1)technical parameterModel frame size (MM) graphics ... 24x2 110/220LB600 600x400x28 540 x340 20x2 11/2202) Featurea: aluminum frame, exquisite from .portabity ,various colour may provide choices(such ... centre, band marriage yarn depic buliding , exhibition , famliy .etc small aluminum single-sides super thin light box