皇家邮政推出了新的邮票样式, 在原本的邮票旁边增加了一个必须的 Data Matrix 块 The new barcode is an integral part of the stamp and must remain intact for the stamp to be valid. https://www.royalmail.com/sending/barcoded-stamps?iid=H1_BARCODEDSTAMPS 35 views14:31