Blow molding, inozivikanwawo sehollow blow molding, inzira inokurumidza kugadzira mapurasitiki ekugadzirisa.Munguva yeHondo Yenyika Yechipiri, kuvhuvhuta maitiro kwakatanga kushandiswa kugadzira yakaderera density polyethylene vials.Mukupera kwema1950, nekuzvarwa kwepamusoro-density polyeth ...
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