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About product and suppliers:
        Alibaba.com offers 1,929 insulated window frame products. About 41% of these are windows, 8% are doors, and 2% are aluminum profiles. 

A wide variety of insulated window frame options are available to you, such as sliding windows, casement windows, and door & window frames. You can also choose from plastic, wooden, and steel. As well as from sliding, fixed, and swing. And whether insulated window frame is horizontal, or vertical. 

There are 1,941 insulated window frame suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Hong Kong, and Turkey, which supply 98%, 1%, and 1% of insulated window frame respectively. 

Insulated window frame products are most popular in Domestic Market, North America, and South America. 

You can ensure product safety by selecting from certified suppliers, including 544 with ISO9001, 310 with Other, and 208 with ISO14001 certification.