plastic extruder heater/aluminum rings/heater for extruder machine

cast aluminum heating ring /heater   Aluminium Heaters for conical screw and barrel( aluminium casting heater)    Advantage :   1.The cast aluminum heater can attach closely with the heated material.It can be up to needed temperature quickly,high thermal conductivity.heating evenly,vibration and concussion resistant abrasion protection,long life span,safe and credible.   2.The cast aluminum heating device is widely used. It has many advantages which other heaters don't have. For...