Name: Shenghe Chemical (ShengheChemical). Áudio original criado por Shenghe Chemical. 1-Methyl-2-pyrrolidinone（CAS No：872-50-4;2687-44-7） #ShengheChemical #圣和化工厂家 #ChemSP #Additives #Chemicals
Uploaded: 2026-08-06T06:56:11Z
Duration: 54 s
Description: 1-Methyl-2-pyrrolidinone（CAS No：872-50-4;2687-44-7） #ShengheChemical #圣和化工厂家 #ChemSP #Additives #Chemicals