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About product and suppliers:
        Alibaba.com offers 2,328 steel structure truss purlin products. About 58% of these are steel structures, 5% are workshops & plants, and 4% are steel channels. 

A wide variety of steel structure truss purlin options are available to you, such as aisi, gb, and astm. You can also choose from is perforated, not perforated. As well as from c channel, u channel. And whether steel structure truss purlin is free samples. 

There are 2,244 steel structure truss purlin suppliers, mainly located in Asia. The top supplying countries are China (Mainland), United Arab Emirates, and Singapore, which supply 98%, 1%, and 1% of steel structure truss purlin respectively. 

Steel structure truss purlin products are most popular in South America, Southeast Asia, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 279 with ISO9001, 224 with Other, and 132 with OHSAS18001 certification.