... (CMYK) process We can offer all kinds of envelopes, paper bags and paper CD sleeves,any sizes, materials, and styles. ... window envelope and so on..Materialoffset paper,Kraft paper, cardboard, special paper, art paper, close-line paper, chipboard, white paper board, etc. Sharp & ... T, balance against B/L copy. L/CSample time:3 days for sampleWENNZHOU HONGYOU PAPER PRODUCT CO.,LTDWe are the ...