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About product and suppliers:
        Alibaba.com offers 134,883 rectangular steel tube products. About 85% of these are steel pipes, 5% are stainless steel pipes, and 1% are laser cutting machines. 

A wide variety of rectangular steel tube options are available to you, such as 10#, q235, and q195. You can also choose from astm, api, and gb. As well as from ce, bsi, and rohs. And whether rectangular steel tube is structure pipe, gas pipe, or fluid pipe. 

There are 134,542 rectangular steel tube suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Japan, and India, which supply 99%, 1%, and 1% of rectangular steel tube respectively. 

Rectangular steel tube products are most popular in Southeast Asia, Mid East, and South America. 

You can ensure product safety by selecting from certified suppliers, including 61,742 with ISO9001, 29,196 with Other, and 5,424 with ISO14001 certification.