Duplex board paper coating machine (2100mm) production line 1) Widely used in packaging and color printing like FedEx Pak, hand bags, wine packages, shoe boxes, toothpaste boxes, cosmetics outer packaging or whatever packaging the item may be suitable for. 2) 2100mm duplex board Coating machine production line, it's applicable for paperboard that gram of base paper is 150 500g per square meter.To do single-sided coating. The total amount of coating 30 70g per square meter , design speed 80m per min. 3) Features: Single-side coated white have high whiteness coating is exquisite, coated surface is good in Ink absorbency, smoothness, printing gloss, water-proof, etc.