conical tandem screw system with air cooling

{"cid":"91222495","title":"Barrel Straightness 0015mm per meter Conical Tandem Screw System Featuring Air or Water Cooling Suitable for Industrial","imgUrl":"https:\/\/img.chinax.com\/nimg\/cb\/58\/4e34981147301ae270fba5da8c8d-200x200-1.jpg","attrs":{"Price":"USD $2300\/set","Brand Name":"Jialong","Model Number":"51\/105","Minimum Order Quantity":"1 Set","Delivery Time":"1-35 Work Days","Place Of Origin":"China","Certification":"ISO9001","Packaging Details":"Woodern Package","Payment Terms":"T\/T","Barrel Straightness":"0.015mm\/m","Barrel Cooling":"Air Or Water Cooling","Screw Rotation Speed":"0-60rpm","Surface Roughness":"Ra0.4um","Screw Cooling Method":"Oil Cooling\/Water Cooling","Screw Surface Roughness":"Ra 0.4\u03bcm","Barrel Nitriding Depth":"0.5mm - 0.8mm","Barrelmaterial":"High-grade Alloy Steel"}}