REF: QT18ABxy / J5Z – wwyy (with A meaning the range from 1 to 9; with B meaning the color from 1 to 9; with xy meaning the country code – x from A to Z / y from 0 to 9; with /J5 meaning the production site code; with Z meaning the After Sale Service index for internal traceability from A to Z; with wwyy meaning production dates- ww from 01 to 52 / yy last 2 digits of the year)