3 0mm extrusion screw and 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"}}

{"cid":"91213907","title":"Cm80 Twin Screw Extruder Barrel 2.0-3.0mm For Cincinnati Krauss Maffei Extrusion Machine","imgUrl":"https:\/\/img.chinax.com\/nimg\/14\/c3\/0fe39f5565dda4674f025546bd63-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"lianzhong","Model Number":"lzptsb-140mm","Minimum Order Quantity":"1pcs","Delivery Time":"60 DAYS","Certification":"ISO","Place of Origin":"China","Payment Terms":"T\/T,","Supply Ability":"1000 SETS\/MONTH","Packaging Details":"Standard Export Wooden Case","Material":"38CrMoAIA\/SACM645\/AISI4140\/SKD61\/etc","Nitriding depth":"0.5-0.8mm","Alloy depth":"2.0-3.0mm","Quenching hardness":"HRC55-62","Surface roughness":"Ra0.4","Screw straightness":"0.015mm"}}