ʻO ka PVC a i ʻole ka papa polyvinyl chloride e hōʻike ana i kahi mea hana i hana ʻia e ka hana ʻana i kahi pūnaewele polymer ma waena o PVC a me polyurea.Hāʻawi ia i nā pono he nui, e like me ka hoʻonui ʻia ʻana, ka uku-pono, ka hoʻohana hou ʻana, ke kūpaʻa kiʻekiʻe i nā kemika, ka wai a me ke ahi, et...
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