LZ aluminum casement window with top ventilating louvers aluminum window louver vent window aluminum on China WDMA Type:Casement Windows contract or warp when they

contract or warp when they come in touch with water

the previous process are not allow problem products to the next process

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LZ aluminum casement window with top ventilating louvers aluminum window louver vent window aluminum on China WDMA Type:Casement Windows contract or warp when theyProduct Description aluminum casement windows, or called swing windows * Swing open to inside or outside. It is up to you but it has to be decided before production. * Good quanlity hardware, long life expectancy. The width of one single opening panel is usually between 400 to 600mm * On the top of this item, there are fixed louvers for constant ventilation. Behind of louvers, there is fixed mosquito net. Reinforced stainless steel material. No bugs