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About product and suppliers:
        Alibaba.com offers 114 standard thickness of c purlins products. About 67% of these are steel channels, 13% are metal building materials, and 9% are steel structures. 

A wide variety of standard thickness of c purlins options are available to you, such as aisi, astm, and gb. You can also choose from is perforated, not perforated. As well as from free samples. 

There are 114 standard thickness of c purlins suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of standard thickness of c purlins respectively. 

Standard thickness of c purlins products are most popular in Southeast Asia, Mid East, and Africa. 

You can ensure product safety by selecting from certified suppliers, including 35 with ISO9001, 16 with ISO14001, and 15 with OHSAS18001 certification.