16×28.5cm； Positive 1619× 26 cm;

Da 32 middle school14.5× 21cm; Positive 32 kPa13×19 cm;

48+00.5×19 cm; Positive 48-opening 9.5×17.5cm;

64+00.5×14.5cm; Positive 64 kai9.5×13cm.

Common paper for envelopes: 70g/80g/ 100g/120g/140g/offset paper, special paper, 70g/80g/100g/kraft paper.

Information on envelope size of current domestic standard (GB/T 14 16-2003):

B6 176* 125mm is consistent with the present No.3 envelope.

DL 220* 1 10mm is consistent with the current No.5 envelope.

ZL 230 * 120 mm is consistent with the current No.6 envelope.

C5 229* 162mm is consistent with the current No.7 envelope.

C4 324* 229mm is consistent with the present No.9 envelope.

Extended data

International envelope format standard

C6162 *114 mm added international specifications.

B6 176 * 125mm is consistent with the present No.3 envelope.

DL 220* 1 10mm is consistent with the current No.5 envelope.

ZL 230* 120mm is consistent with the current No.6 envelope.

C5 229* 162mm is consistent with the current No.7 envelope.

C4 324* 229 mm is consistent with the present No.9 envelope.

1. Envelopes should be placed horizontally, and the sealing tongue should be on the right or upper side of the front of the envelope, and the sealing tongue of international envelopes should be on the upper side of the front of the envelope.

2. For domestic envelopes of B6, DL and ZL, Grade B envelope paper I and II with no less than 80g/m2 should be selected; For C5 and C4 domestic envelopes, Class I and II Class B envelope paper with no less than 100g/m2 shall be selected; For international envelopes, Class I and Class II A envelope paper of not less than 100g/m2 shall be selected.

3. The color of the postal code box in the upper left corner of the front of the envelope is golden red, and the color code is PANTONE 1795C.

4. The upper left corner of the front of the envelope is 90mm from the left side, and the range of 26mm from the top is the machine-readable scanning area. You can't print any patterns and words except the red frame.

5. The front of the envelope is 55 mm to 160 mm from the right side, and the area below 20mm from the bottom is the barcode printing area, which should be left blank.

6. Advertisements should not be printed anywhere in the envelope.

7. The envelope can be printed with artistic patterns, and it is located in the left area below 26mm above the front, and its area shall not exceed 18% of the front area. The area outside the artistic pattern area should keep the original color of the envelope paper.

Baidu Encyclopedia: Writing Papers

Baidu Encyclopedia: Envelope