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About product and suppliers:
        Alibaba.com offers 39,345 aluminum square tube products. About 24% of these are aluminum profiles, 17% are aluminum pipes, and 1% are other aluminum. 

A wide variety of aluminum square tube options are available to you, such as 6000 series, 7000 series, and 1000 series. You can also choose from square, round, and angle. As well as from anodized, mill finished, and powder coated. And whether aluminum square tube is free samples, or paid samples. 

There are 39,317 aluminum square tube suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Singapore, and Taiwan, which supply 98%, 1%, and 1% of aluminum square tube respectively. 

Aluminum square tube products are most popular in North America, Domestic Market, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 16,699 with ISO9001, 5,820 with ISO14001, and 5,364 with Other certification.