... power,small nose 2,working stable 3,dirt oil missed by the fault 4,overload protection Introduction of stick coal extruder machineMBJ ... and retting powered coal mixture into a nitrogentreated barrel by the extrusion of principle,which will compress into section for ... ,dirt oil missed by the fault.4,Hydraulic coupler drive, smooth operation, small nose, at the same time with the function of overload ...