... grey back Specification: From 240gsm to 500gsm on sheets and reels, standard weight, strong Item: coated duplex board with ... grey backSpecification:From 240gsm to 500gsm on sheets and reels,standard weight, strong stiffness and folding resistance, good printing ... inkabsorbency.Specification: from 250gsm to 500gsm insheets or in reels, any special size is available. We also manufacture andsupply ...