... bag, Greeting cards, Booklet Envelop, Plastic file folderMaterialCorrugated paper, art paper, white board, Kraft paper, Wood free paper, coated paperPaintingOffset, ... Holland etc. 3. We have many advanced corrugated production line, offset printing machine and so on.4. We have ... Vegas show, Hong Kong show, INTERPACK etc. Strong Production Line Quality Control (QC) and Quality Assurance (QA) systems ...