GIDDY
发表于 2025-3-28 16:19:47
http://reply.papertrans.cn/43/4216/421588/421588_41.png
gregarious
发表于 2025-3-28 21:12:48
http://reply.papertrans.cn/43/4216/421588/421588_42.png
overweight
发表于 2025-3-29 02:55:51
Industrially Significant Copolymers Containing Maleic Anhydride unsaturated polyester resins are widely employed as thermoset resins. The broad applications of unsaturated polyester resins are due to their low cost, ease of processability, fast curing, and excellent mechanical properties.