... wire that the customers need.The main machine barrel and screw adopt 38CrMoAl material, are made through twice ... .1, Before the machine running, heat the barrel and screw of the extruder first, pre-warming it according ... , install it on the fixed position of the barrel; there are two heads of the temperature line, ... -4-1,extruder main motor4-4-2,extruder barrel heating appliance4-4-3,temperature line 4-4 ...