Blow molding, inozivikanwawo sehollow blow molding, inokurumidza kugadzira epurasitiki kugadzirisa.Kuumba-kuvhuvhuta Mukati meHondo Yenyika II, mavhiri akaumbwa nemhepo akatanga kushandiswa kugadzira mabhodhoro epolyethylene akaderera.Mukupera kwema1950, nekuzvarwa kwepamusoro-density poly ...
Verenga zvimwe