关于PTMG的百科

• PTMG造句怎么写

• 1、StudyonMechanicalPropertiesofMDI/PTMGTypePolyurethaneElastomer2、Polyoxytertramethylene(PTMG)issynthetizedinonestepusingheteropolyacidascatalyst.WediscussedthefactorswhichinfluencedtheyieldofPTMG.3、StudyonPreparationandProperiesofaNewPTMG-POCopol...
• 2024-02-1015534