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Published time:2013-11-27 9:02:03       Click :1859
        Machining parts in twin screw extrusion of another is part of the core barrel, at present most cm double metal type, shell made of 45# steel after forging, annealing, and then machined into the interior, made of hard alloy and type "C" type set by the press, pressing, grinding into. Due to the direct contact with the material is hard alloy, which has high hardness, wear resistance and so high, the pressed type, so it is easy to change, thus improving the service life of equipment, reduce the user cost.