double registered mail, registered mail 同 courier service

1. Courier service is more expensive but faster and more reliable among registered mail and double registered mail.
2. Registered mail or double registered mail is available for letters and packets but not parcels.
3. Double registered mail service provides the sender with a receipt to confirm its delivery.

2008-07-23 22:23:00 補充：
Correction :
3. Double registered mail service ----->Registered mail service...
4. Double registered mail service provides the sender with a receipt to confirm its delivery and a counter-signing receipt from the receiver.

2008-07-25 19:28:17 補充：
樓主 : counter-signing receipt(收件人的簽收回條).

2008-07-25 19:41:07 補充：
Correction :
4. Double registered ... and ... from the receiver ------->Double registered ... and ... from the
recipient.

Double Registered Mail