We are sourcing for a finished corrugated board like white ivory coated with greyback at 400GSM and 170GSM for the E-flute corrugation and 140~160GSM te card (not the same quality as with the front). Total thickness is 2mm. And the size we need is 60" X 91". The flute is along the 91" We need a 40HQ, around 9000 sheets can be loaded up. Best regards, Jes