The stem is the connection between the injection nozzles of the air and the plastic channels, has the task of putting the plastic nozzle of the machine from lines to conduits or directly to crush stereotypesStem injection systems used most often have silver spray stem-Silver stalks injectors 2 bolts: used for the machine of up to 350 tons-Silver stalks injectors 4 bolts: used for air on 200 tons
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