... and smooth etc, mold shall be designed with hydraulic elevation fast-replacing filtering mesh(without any shutdown while ... material,Conveying feeding,Degassing single screw extruder,Hydraulic screen exchanger,Material outing mould,single screw extruder,Hydraulic screen exchanger,Rub ... head of machine could be electric screen changer or hydraulic screen changer. 5. Simple process, advanced technology, ...