本机是针对精装书壳，档案夹，书面的装裱成型而设计，其导动辊筒将封面引至包边装置，由包边装置将面纸两边折入紧贴灰纸板，压轮及辊筒将空气压出，令封面平整、光滑、美观，尺寸大小由手轮任意调节，操作简洁，配用单边包边机，完成整个工艺。

This machine is applies to hard cover, file box, folding book cover. The roller firstly lead the cover to the folding equipment, and then folding two sides and pressing, make the cover face smoothly and beautiful, it can adjust the size easily, it easy to operate, matching with single pressing machine and finish the process.