Topwindow Aluminium Accordion Folding Window Aluminum Folding Patio Windows on China WDMA bifold All metal gears make it

All metal gears make it durable and long lasting

- Dedicated double glazed design for enhanced performance

45 165mm Overall Dimension: 4600mmx1250mmx1800mm Weight: 1200kg Product Keywords upvc window making machine

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Topwindow Aluminium Accordion Folding Window Aluminum Folding Patio Windows on China WDMA bifold All metal gears make itTopwindow Aluminium Accordion Folding Window Aluminum Folding Patio Windows Manufacturer&Desginer Structural features: 1. Adopt double guarded design, to increase the wind resistance index. 2. Use the open wood technology for splicing frame, and use imported waterproof glue before splicing, the colloid is fully extruded when we fasten screw, so the waterproof problem is solved. 3. Profile adopts European standard hardware notch, muti point locking, to