NUSIGN is DELI's flagship young brand, Nunu series folder products include widened folders and standing folders, designed to solve various file management problems through a one-stop systematic way to optimize the use of users. The appearance design of the series is dominated by minimalist elements, and the problem of paper warping on both sides of the traditional fixture is solved by widening the design. At the same time, combined with the design of man-machine, the fixture head-up design, to achieve the effect of interaction and labor saving, for users to design and produce products full of humanistic care.