Technical Details:

Serial number: R.30
Values in set: 4
Denomination: 2.65 yuan
Date of issue: 1st April 2002
Designer: Zhang Seng and Yang Bo

Size of stamp: 25 * 30 mm
Perforation: 13 * 13.5
Sheet composition: 40
Printing process: photogravure
Printer: Beijing Postage Stamp Printing House

Keeping Low Birth Rate 5f
Cherishing Mineral Resources 30f
Cherishing Water of Life 80f
Protecting Ocean Resourses 1.50y