... , 250gsm, 300gsmIvory board ( white cardboard ) --- 250gsm, 300gsm, 350gsm, 400gsmDuplex board with white back --- 250gsm, 300gsm, 350gsm, 400gsmDuplex board with grey back --- 250gsm, 300gsm, 350gsm, ... satisfaction g. After-sale services: We will deal with your complain on first time , All items shown ... here with various trademarks,brand names and logos("Marks")are ...