Що спричиняє поширені дефекти у ПЕТ-пляшках, отриманих методом видувного формування?

What causes common defects in blow molded PET bottles? Defects in blow-moulded PET bottles produced by one-step ISBM machines are almost always process-related rather than material-related — meaning they are caused by incorrect parameter settings, worn tooling, or...