6A015A021 11 7121310141920151618789412323222120ppm(A4),21ppm(Letter) (A)/20ppm(A4),21ppm(Letter) (B)/20ppm(A4),21ppm(Letter) (AF)/20ppm(A4),21ppm(Letter) (BF)/(D)/(E)25ppm(A4),26ppm(Letter) (A)/25ppm(A4),26ppm(Letter) (AF)/25ppm(A4),26ppm(Letter) (BF)/(C)ABBAA