Blow molding, inozivikanwawo sehollow blow molding, inokurumidza kugadzira epurasitiki kugadzirisa.Kuumba-kuvhuvhuta Mukati meHondo Yenyika II, mavhiri akaumbwa nemhepo akatanga kushandiswa kugadzira bhodhoro re polyethylene rakaderera.Mukupera kwema1950, nekuzvarwa kwepamusoro-density poly ...
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