document folder printing 1.2mm cardboard 2.metal spiral 3 ... 13 years of experience. Import about 20s advance mechines.document folder printing Material:2mm grey board,157g gloss art paper ... ,Pantone colors printing Surface disposal: Gloss lamination Bindingmetal wireSize:A4,A5,A6,any size,make the folders as the cutomers ... ,the design,Also,we can help design carboard cover document folder printing