Ua ʻike mākou a pau ʻo nā pepa puka pc, i ʻike mau ʻia ʻo nā pepa pc, ʻo ia ka inoa piha no nā ʻāpana polycarbonate. He ʻano mea hale ia i hana ʻia mai ka polycarbonate a me nā mea PC ʻē aʻe, me nā ʻāpana ʻelua a i ʻole multi-layer hollow sheets a me ka insulation, insulation heat, sound insulation, a me nā hana pale ua. Aia kona mau mea maika'i i kona māmā a me ke kū'ē i ka wā. ʻOiai he like ka hopena o nā ʻāpana plastik ʻē aʻe, ʻoi aku ka lōʻihi o nā ʻāpana hollow, me ka hoʻouna ʻana i ka māmā ikaika, ka pale ʻana i ka hopena, ka insulation wela, anti condensation, flame retardancy, sound insulation, a me ka hana hana maikaʻi.