Ob leeg TDI thiab MDI yog ib yam ntawm cov khoom siv raw hauv polyurethane ntau lawm, thiab lawv tuaj yeem hloov tau ib leeg rau qee qhov, tab sis tsis muaj qhov sib txawv me me ntawm TDI thiab MDI ntawm cov qauv, kev ua haujlwm thiab kev siv subdivision.1. Cov ntsiab lus isocyanate ntawm TDI yog siab dua li ntawm MDI, ...
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