Double-alloy level	 Level A - containing Tungsten of 40% Level B - containing tungsten of 25% Level C - containing tungsten of 9.5%
Surface Treatment	 Heat Treatment High Frequency Treatment Nitriding treatment(120 Hours) Depth of Nitrided Layer: 0.5-0.8 mm Hardness of Nitrided Layer: 900-1020Hv (HRC56° -65° ) Hard Chrome Plating treatment: Thickness of Hard Chrome Plating Layer: 0.05-0.10mm Hardness of Hard Chrome Plating Layer: ≥ 950HV Nickel alloy plating. Treatment: Bimetallic Barrel/Cylinder: Centrifugal Casting (Inlay Alloy) Bimetallic Screw: Plasma Alloy Coating Spraying Depth of Bimetallic Layer: > 2mm Hardness of Bimetallic Layer: HRC55° -72° Basic information	Roughness of the surface: Ra0.4um Linearity of the screw: ≤ 0.015mm Linear axis limit: ≤ 0.02mm Hardness after Hardening & Tempering: HB240-280 Fragility of Nitration: ≤ Two class
General Terms	 Means of transport: Ocean, Air, Express Production time: About 25 days after we receive the deposit and lead time will different according to the order quantity!
Our products advantages	 1)High productivity 2)Wonderful plasticizing 3)Low energy consumption 4)Wearable and Durable 5)Fast and On time delivery 6)Best customer service!