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Advanced Technology Conical Twin Screw Barrel. Core Cooling Technology: Unique screw core cooling design for efficient heat management. Vacuum Exhausting System: Integrated vacuum exhausting for superior material quality. Self-Cleaning Design: Good self-cleaning capability ensures easy maintenance. Low Energy Consumption: Optimized design reduces energy usage during operation. Advanced Heat Treatment: Internationally advanced equipment solves wear and corrosion issues. High Hardness Alloy: Alloy hardness ranges from HRC62 to HRC72 for durability. Precision Straightness: Screw straightness controlled within 0.015mm tolerance. Nitrogen Treatment: Nitrogen layer depth 0.6-0.8mm with hardness 900-1100HV.