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About product and suppliers:
        Alibaba.com offers 981 40x40 aluminium profile products. About 90% of these are aluminum profiles, 1% are window and door making machine, and 1% are doors. 

A wide variety of 40x40 aluminium profile options are available to you, such as square, t - profile, and flat. You can also choose from decorations, door & window, and transportation tools. As well as from is alloy, non-alloy. And whether 40x40 aluminium profile is free samples, or paid samples. 

There are 981 40x40 aluminium profile suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Turkey, and India, which supply 97%, 1%, and 1% of 40x40 aluminium profile respectively. 

0x40 aluminium profile products are most popular in Domestic Market, North America, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 581 with ISO9001, 185 with Other, and 162 with ISO14001 certification.