... is welcome folder,file folder,binders,lever arch file,paper file holder,paper folder1) Size: according to clients' specific requirements2) Color: ... CMYK)process.3) Materials: 157g art paper, duplex board with black back, copper plate, art paper, C1S mounted with each other. ... 4.5cm for A4 file2 paper material is 157g art paper and 1200g duplex grey cardboard and 157g art paper,offset paper for the ...