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About product and suppliers:
        Alibaba.com offers 2,928 insulated glass unit products. About 64% of these are building glass, 1% are glass, and 1% are prefab houses. 

A wide variety of insulated glass unit options are available to you, such as free samples, paid samples. 

There are 2,928 insulated glass unit suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of insulated glass unit respectively. 

Insulated glass unit products are most popular in Domestic Market, North America, and Southeast Asia. 

You can ensure product safety by selecting from certified suppliers, including 1,920 with ISO9001, 628 with ISO14001, and 99 with OHSAS18001 certification.