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Used for connection of 90 angle structure of aluminum doors and windows.
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The new linkage structure makes corner-assembling synchronous.
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Left and right punching heads feed synchronous to avoid deforming in corner-assembling procedure to make window corner connection more solid.
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Synchronously feeding structure makes the adjustment simple and easy.
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The blades can be adjusted up and down relatively by the threads.
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It can be equipped with single-blade multipoint blades, making the corner-forming more reliable, the work more efficient, the manufactures more precision and the quality more excellent.