ʻO ka wehewehe ʻana: Torwell ASA (Acrylonitirle Styrene Acrylate) he polimer kūʻokoʻa UV, kaulana kaulana i ka wā.He koho maikaʻi loa ʻo ASA no ka paʻi ʻana a i ʻole nā ʻāpana prototype i loaʻa ka haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa e hoʻolilo iā ia i filament kūpono no nā paʻi ʻenehana.ʻOi aku ka lōʻihi o kēia mea ma mua o ABS, he haʻahaʻa haʻahaʻa, a loaʻa iā ia ka pōmaikaʻi hou o ka UV-stable no nā noi waho/waho.