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About product and suppliers:
        Alibaba.com offers 10,321 roof beam products. About 3% of these are metal building materials, 1% are steel h-beams, and 1% are moving head lights. 

A wide variety of roof beam options are available to you, such as astm, jis, and en. You can also choose from q235, q235b, and ss400. As well as from free samples, paid samples. 

There are 10,321 roof beam suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of roof beam respectively. 

Roof beam products are most popular in Africa, Mid East, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 2,976 with ISO9001, 1,392 with Other, and 282 with ISO14001 certification.