HS code: 2931399022

Methyl phosphonic acid, two chlorine methyl phosphonic acid two methyl ester, propyl phosphonic acid, methyl phosphonic acid, ethyl phosphonic acid ethyl ester two, methyl phosphonic acid polyethylene glycol two (CAS:294678-51-7) [including methyl phospho

甲基膦酰二氯、丙基膦酸、甲基膦酸、甲基膦酸二聚乙二醇酯（CAS号：294675-51-7）;