邮政信封纸通过鉴定福建省顺昌县造纸厂和福建省造纸研究所合作生产出邮政信封纸。该纸由１００％硫酸盐木浆制成，具有牛皮纸的强度，印刷纸的适印性和书写纸书写流畅的性能。该纸由将乐印刷厂等单位做成邮政信封，分别经邮电部信函处设备质量监督中心、邮电部第三研究所... Postal envelope paper through the identification of Shunchang County, Fujian Province Paper Factory and Fujian Institute of Paper co-produced postal envelope paper. The paper is made of 100% kraft pulp with strength of kraft paper, printability of printed paper and smoother writing of writing paper. The paper by the music printing factory and other units made of postal envelopes, respectively, by the Ministry of Posts and Telecommunications Equipment Quality Supervision Center, Ministry of Posts and Telecommunications Institute of the third ...