... duplex board with grey back Specification: From 240gsm to 500gsm on sheets and reels, standard weight, strong Our company is very big ... ,artpaper,art card paper,duplex board with grey back paper,duplex board with whiteback paper,ivory board paper,kraft paper,cup paper ... paper, and exercise book, note book products.Item: coated duplex board with grey backSpecification:From 230gsm to 500gsm on sheets and ...