230g to 450g Duplex Board Grey Back with Good StiffnessDescriptions     1.) Duplex Board with Grey Back is used for carton, boxes, file cover, courier envelopes converting as well as other stationery & packing application purpose2.) Substance: 230-450gsm 3.) Size: both in sheets or in reels OEM available 4.) Coating: single side coating5.) Printing: 4-9 colors clear offset printabilityPackaging & Delivery1) In Rolls, PE film wrapped. Waterproof film. 2) In sheets, bulk packed on strong wooden pallets wrapped with PE film, 4 angles protected .Waterproof film. 3) Customized package for customersOther details:The Minimum Order Quantity is18 MTWe accept T/T or L/C for payment.Delivery terms are FOB or CIF.We offer free samples for you, it may takes 3-7 days.  Delivered within 5-7 days after the receipt of depositFeatures:1.) Professional quality ISO control system2.) High stiffness and strong strength3.) Stable ink absorbability and rich printing dots4.) Smooth coating surface with grey back 5.) Standard packing and professional exporting servicesFAQ1.Are you manufacturer? What are your main products?Yes, we have our factory that established in 2010. We are specialize in gray board, duplex  board, colored paper board, laminated board , Kraft  papa and paper napkin, etc.2. How to order for your grey board/paperboard/cardboard paper ?Please send us your purchase order by Email or Fax. We need to know the information for your order. 3. How's the quality assurance? We will provide few free samples to you for your reference. We assure you we will provide the same quality products as you confirmed.