... style and Archaize style, etc.Material:Grey board: From 500g to 2000g; 1.5mm/1000g and 2mm ... or double white and inside grey.Duplex Board: From 250g to 450g, 250g is the normally ... used for book printing and envelope.cardboard paper: From 250g to 450g, 250g, 300g is the ... specific requirements. With the delicate design, fine craftsmanship, high quality, reasonable price, as well as the best service, ...