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Screw barrel is suitable for machine tonnage from 60 tons to 4000 tons. Some in stock, fast delivery. Suitable for plastic product production Specifications and application Specifications: diameter: Φ14-Φ250mm, Nitriding depth:0.5mm-0.8mm Nitride hardness: HV850-1000, Chromium plating thickness: 0.05mm Alloy depth: 1.5-3mm Scope of application: PP, PE, ABS, AS, PS, PC, PET, bakelite