PUA resin is the best in storing stability and speed on UV reaction while the mol rate of polyol: TDI: HEA is 1:2. 05:2.15.是什么意思_PUA resin is the best in storing stability and speed on UV reaction while the mol rate of polyol: TDI: HEA is 1:2. 05:2.15.在线翻译_英语_读音_用法_例句