... 5.two extruder Plstic machine madical pipe production line ItemDescriptionModelQty1.1Single screw extruderSJ-55*281set1.2Side Co- ... conveying and collect device1 setThis medical pipe production line can used to make nelaton catheter,suction catheter, ... consists of feeding system, extruding machine, cooling system, on-line detection system composed of sophisticatedScrew has the professional design, ...