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First is the broken bridge aluminum wear on the inner side of the notch of the insulation or plastic profile rolling upper flowers, increase the broken bridge aluminum profile and heat insulation strip friction composited together, with special clamping pneumatic device, can realize "side of the tooth edge wear edges film". Then the tooth type roller accurately insulation aluminum profile into two corresponding notches. Finally, 3 groups of hard rolling wheel, will finish the teeth and wear good insulation or plastic profile extrusion pressing firmly.