Aʻo leʻi oʻo i le faʻagasologa autu o le extrusion, o meaʻai polymeric teuina e faʻafefiloi ma faʻaopoopoga eseese e pei o mea faʻamautu (mo le vevela, faʻamaʻi faʻamaʻi, faʻamautu UV, ma isi), lanu lanu, faʻafefe afi, faʻatumu, lubricants, faʻamalosi, ma isi mea e faʻaleleia ai le tulaga lelei ma le fa'agaioiina. Mi...
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