Blister ntim raw khoom PVC polyvinyl chloride yeeb nkab

Ntawm ntau cov khoom siv PVC, PVC kav yog nws qhov thib ob loj tshaj plaws noj cheeb tsam, suav txog li 20 feem pua ​​​​ntawm nws cov khoom noj. Hauv kuv lub tebchaws, cov kav dej PVC tau tsim ua ntej tshaj li PE kav thiab PP kav, nrog rau ntau yam, kev ua tau zoo thiab kev siv ntau yam, tuav txoj haujlwm tseem ceeb hauv kev ua lag luam.