NINGBO ASIA SCREW MACINERY CO.,LTD was established in 2014 Year and is located in NINGBO. We are one professional extruder spare parts and extruder manufacturer, especially for the Single Screw barrel, Twin screw barrel, Injection screw barrel, squeezing screw barrel, 3D Printer mini screw barrel, Gearbox, Die head, Air ring, recycling extruder