dimethylol ethylene urea resin 二羟甲基乙烯脲树脂
ethylene-urea resin 乙烯脲树脂
dimethylol l ethylene urea resin 二羟甲基乙烯脲树脂
hylol ethylene urea resin 二羟甲基乙烯脲树脂
Dihydroxymethyl Ethylene Urea Resin 二羟甲基乙烯脲树脂
ethylene-urea resin water soluble coating 乙烯
ethylene urea formalehyde resin 乙烯脲甲醛树脂
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