acid-free paper 680g kraft paper a4 file box kraft paper file box file cover printed logo customization 无酸纸680g牛皮纸A4档案盒牛皮纸文件盒档案封皮加印logo定制定做

310*220

kraft paper 500g 31*22*1 kraft paper 500g 31*22*2 kraft paper 500g 31*22*3 kraft paper 500g 31*22*4 kraft paper 500g 31*22*5 kraft paper 500g 31*22*6 kraft paper 600g 31*22*8 a4 acid-free paper acid-free paper 700g 31*22*2 acid-free paper 700g 31*22*3 acid-free paper 700g 31*22*4 acid-free paper 700g 31*22*5 acid-free paper 700g 31*22*6 acid-free paper 700g 31*22*8 acid-free paper 700g 31*22*10 acid-free paper 700g 31*22*12 book 700g 2cm book 700g 3cm book 700g 4cm book 700g 5cm book 700g 6cm