Sheet to be assembled into a file box, for learning cards, is a stamped sheet for sections to give the inner box and dividers and slipcase, which can be folded to A4 sheet dimensions for mailing

摘要

The file box, to take learning cards, is stamped sheet in a width of 630 mm and a height of 297 mm, to be folded into the dimensions of an A4 sheet. It is composed of three stamped sections. One section (A) gives the inner part with the base, side walls, front and rear walls. The second section (B) gives dividers to form three compartments to take A9 learning cards. The third section (C) forms a slipcase. The stamped sheet can be of card or cardboard, corrugated cardboard, film or plastics, coated or uncoated, printed or without printing, or impregnated.