Maximizing kev ua tau zoo ntawm Polyvinyl cawv hauv dej-soluble daim ntaub ntawv
Alcohol Polyvinyl (PVA) yog ib qhov ntawm cov khoom siv kho tshuaj nrog ob peb yam thiab zoo li cas ua hauj lwm hauv ob peb hom kev ua haujlwm uas siv rau hauv kev ua haujlwm nrog dej. Tus blog no piav qhia txog cov lus qhia tshwj xeeb ntawm PVA, cov chaw ua haujlwm ntawm PVA’s ap...
Saib ntxiv