... ,GB/T28001 -top quality,factory price -timely delivery Paper Wall CalendarSize28*30.5 or according to client's requestMaterialcover ... :230gsm.250gsm,300gsm art paper,1sheet,4C/4Cprinted inner:90gsm,105gsm,128gsm,157gsm,180gsm ... Japanese XiaoSeng offset press, CERO computer direct plate making system (CPT), and Taiwan Hengquan post-printing equipment,and CERO ...