... the steel wire that the customers need.The main machine barrel and screw adopt 38CrMoAl material, are made through twice nitrogen treatment ... bearings well, for insure the life time of the bearing.6. Machine OperationThe machine type 65, it should be installed and debugged by ... it can work normally.1, Before the machine running, heat the barrel and screw of the extruder first, pre-warming it according ...