广东省肇庆地区科委在3月3～6日在封开县召开了103~#马来松香鉴定会。该产品系由封开县松香厂用100份松香和31份马来酸酐加合制成。经二年来各地纸厂使用,证明可节省造纸用松香25～60%、降低硫酸铝用量9～50%。会议建议尽早列入计划、制 Zhaoqing District Science and Technology Committee of Guangdong Province held the 103~#Malaysia Rosin Identification Association in Fengkai County from March 3rd to 6th. The product is made from 100 parts of rosin and 31 parts of maleic anhydride by Rosin Factory in Fengkai County. After two years of use by paper mills, it has been proved that 25 to 60% of rosin can be used for papermaking and 9 to 50% of aluminum sulfate can be reduced. The meeting proposed to include plans and systems as soon as possible.