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About product and suppliers:
        Alibaba.com offers 10,639 20mm aluminium tube products. About 8% of these are aluminum pipes, 1% are packaging tubes, and 1% are moulds. 

A wide variety of 20mm aluminium tube options are available to you, such as 6000 series, 5000 series, and 2000 series. You can also choose from round, square, and oval. As well as from anodized, polished, and mill finished. And whether 20mm aluminium tube is t3 - t8, or o - h112. 

There are 10,615 20mm aluminium tube suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Taiwan, which supply 99%, 1%, and 1% of 20mm aluminium tube respectively. 

0mm aluminium tube products are most popular in Domestic Market, Southeast Asia, and North America. 

You can ensure product safety by selecting from certified suppliers, including 4,346 with ISO9001, 1,986 with ISO14001, and 1,752 with OHSAS18001 certification.