dutch white cardboard art white paper cardboard 8 open a4 white cardboard 4k white thick cardboard a3 painting marker paper

a4(A4) a3(A3) 8 open(8开) 4 open(4开)

140g (double-sided not smooth) single price(140g（双面不光滑）单张价格) 175g (both sides are not smooth) single price(175g（双面不光滑）单张价格) 220g (both sides are not smooth) single price(220g（双面不光滑）单张价格) 270g (both sides are not smooth) single price(270g（双面不光滑）单张价格) 320g (both sides are not smooth) single price(320g（双面不光滑）单张价格) glossy white card 220g (one side smooth) single price(光面白卡220g（一面光滑）单张价格)