ʻO ka plastic he polymer synthetic a kūlohelohe paha, i hoʻohālikelike ʻia me ka metala, ka pōhaku, ka lāʻau, nā huahana plastic i nā mea maikaʻi o ke kumu kūʻai haʻahaʻa, plasticity, etc. i kēia lā. I nā makahiki i hala iho nei, som...
Heluhelu hou aku