parallel twin screw barrel,screw barrel,.screw and barrel

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parallel twin screw barrel,screw barrel,.screw and barrel
Posting date : Feb 02, 2010
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39-
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Twin Screw & Barrel Terms of Payment: 100% T/T in advance Supply Ability: 2000 Set/Sets per Month Packaging: wooden case FOBPort: ningo ro shanghai Detailed Product Description 1. Material: 38CrMoAI A 2. Base material: 38CrMoAI A, Special alloy is welded on the flight of screw, prolong life of screw. 3. Easy wearing parts of barrel made from anti-wear alloy can be improved abrasion performance. 3. Technical parameter: 1): Depth of Nitration Layer: 0.5-0.8mm 2): Hardness of Nitration: 900-1000HV 3): Fragility of Nitration: Less than grade 1 4): Roughness of the surface: Ra0.4 5): Straightness of the screw: 0.015mm 6): Surface hardness of Nitrated Cr coating Layer: >=950Hv 7): The thickness of Chrome-plating layer: 0.025-0.085mm 8): Depth of alloy Layer: >2m.

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