Te mārama ki ngā mātāpono o te tukanga hanga pupuhi extrusion, ngā painga, me ngā āhuatanga awe
Ko te whakapūtanga pupuhi whakaputa (EBM) he tukanga e whakamahia ana hei hanga pounamu kirihou tuwhera, ipu, me ētahi atu āhua mā te whakamahi i te polyethylene matotoru (HDPE) me te polypropylene (PP) rānei. Ko te tikanga he whakamahana i ngā pirepire kirihou, i ngā maramara rānei kia rewa, kātahi ka whakaputa ...
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