... laying etc.Tin set is composed of the conical twin-screw extruder,vacuum forming table,dragger,cutter,stiring up rack ... cooling machine,plastic power charger,conical double screw plastic extruder,(single screw extruder)handpiece,double-wall accordion pipe shaper, ... system,Cooling device,Pedrail Haul-offs,Gauzing machine ,Mono-screw outer extrusion system,Pedrail Haul-offs ,Gauzing machine ,Automatic ...