... iron connect spring/hingeCompany infoWe offer the aluminum extrusion for light box,the picture frame corner,and other hardware ... equipments,such as photo frame,showcase,light box,exhibition booth,sign panel,sign light box,display rack,bulletin board,decoration edge ... more flexible;Product componentback board:KT,PVC forex,MDF,aluminum composite panel/Alucobond,iron sheetfront board:PS,PVC,PC in ...