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About product and suppliers:
        Alibaba.com offers 55,635 door casement products. About 37% of these are windows. 

A wide variety of door casement options are available to you, such as swing, folding, and sliding. You can also choose from plastic, aluminum alloy, and wooden. As well as from horizontal, vertical. And whether door casement is casement windows, sliding windows, or awning windows. 

There are 55,635 door casement suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of door casement respectively. 

Door casement products are most popular in South America, Southeast Asia, and Africa. 

You can ensure product safety by selecting from certified suppliers, including 16,386 with ISO9001, 6,437 with Other, and 4,343 with ISO14001 certification.