
250 Barrel for Extruder Machines Made by Ejs China with First Grade Nitralloy Steel. Premium Nitralloy Steel: Manufactured using first-grade Nitralloy steel for superior durability and performance. Custom Base Materials: Available in 38crmoala, 34cralni7, 31crmov9, or other materials upon request. Advanced Surface Treatments: Options include bimetallic alloy coating, nitriding, and hard chrome-plating. Multiple Alloy Types: Four distinct bimetallic alloys (EJS01-EJS04) tailored for specific wear and corrosion needs. Wide Workable Length: Barrel lengths range from 700mm to 3000mm, with custom lengths available for screws. High Hardness & Resistance: Hardness up to HRC 65 with excellent anti-wearing and anti-corrosion properties. Comprehensive Quality Control: First-class steel selection with precise dimension checks and final complete inspection. One-Stop Service: Includes before-sales, production updates, and after-sales support with fluent English communication.