2 0 3 0mm alloy depth extrusion screw barrel

{"cid":"91223756","title":"2.0-3.0mm Alloy Depth Plastic Extrusion Screw Barrel With HRC55-62 Quenching Hardness And 0.5-0.8mm Nitride Depth","imgUrl":"https:\/\/img.chinax.com\/nimg\/1a\/78\/6e6e17c275c69395def06a982c64-200x200-1.jpg","attrs":{"Brand Name":"ALVEN","Model Number":"Vent Screw Barrel","Place Of Origin":"Zhoushan China","Surface Roughness":"Ra0.4","Quenching Hardness":"HRC55-62","Nitride Depth":"0.5~0.8mm","Heating zones":"3-5 Zones","Application":"PP\/PE\/PET Extrusion Machine","Material":"High-quality Alloy Steel","Surface treatment":"Nitriding \/ Bimetallic Treatment","Base Materials":"38CrMoAlA"}}