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YIHOO PU (polyurethane) ua npuas dej ntxiv
Ua npuas yas yog ib qho ntawm ntau yam tseem ceeb ntawm polyurethane cov khoom siv hluavtaws, nrog cov yam ntxwv ntawm porosity, yog li nws qhov txheeb ze sib xws me me, thiab nws lub zog tshwj xeeb yog siab. Raws li qhov sib txawv ntawm cov ntaub ntawv raw thiab mis, nws tuaj yeem ua rau muag muag, ib nrab tawv thiab tawv polyurethane ua npuas yas thiab lwm yam.
PU ua npuas ncauj tau siv dav, yuav luag ntxig rau hauv txhua qhov haujlwm ntawm kev lag luam hauv tebchaws, tshwj xeeb tshaj yog hauv rooj tog, txaj, tsheb thauj mus los, tub yees, kev tsim kho, rwb thaiv tsev thiab ntau yam kev siv.
