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About product and suppliers:
        Alibaba.com offers 35,745 rectangular steel hollow section products. About 97% of these are steel pipes, 1% are aluminum profiles. 

A wide variety of rectangular steel hollow section options are available to you, such as q345, 10#, and 16mn. You can also choose from api, astm, and gb. As well as from structure pipe, fluid pipe, and boiler pipe. And whether rectangular steel hollow section is hot rolled, erw, or cold rolled. 

There are 35,700 rectangular steel hollow section suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Vietnam, which supply 99%, 1%, and 1% of rectangular steel hollow section respectively. 

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

You can ensure product safety by selecting from certified suppliers, including 19,534 with ISO9001, 11,571 with Other, and 2,232 with ISO14001 certification.