Fa'atosina meafaitino ma mea totino o PVC laupapa palasitika.PVC laau paʻu ma fila laupapa ma inorganic faʻatumu (calcium carbonate), lubricant, stabilizer, foaming agent, foaming regulator, toner ma isi faʻaopoopoga faʻapipiʻi (plasticizer, toughening agent, coupling agent), etc. 1, resin domest...
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