I ka honua e ulu mau nei o ka hana ʻana i nā kāmaʻa, ʻo ke koho ʻana o nā mea waiwai ke kuleana koʻikoʻi i ka hoʻoholo ʻana i ka maikaʻi, ka lōʻihi, a me ka hana o ka huahana hope. ʻO nā ʻano resins like ʻole, me PVC (Polyvinyl Chloride), RB (Rubber), PU (Polyurethane), a ...
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