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About product and suppliers:
        Alibaba.com offers 21,748 cold channel products. About 35% of these are steel channels, 1% are aluminum profiles. 

A wide variety of cold channel options are available to you, such as aisi, astm. You can also choose from u channel, c channel. As well as from not perforated, is perforated. And whether cold channel is multi-span agricultural greenhouses, diapers/nappies, or steel frame & purlin machine. 

There are 21,748 cold channel suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of cold channel respectively. 

Cold channel products are most popular in Southeast Asia, Mid East, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 5,174 with ISO9001, 1,235 with Other, and 259 with ISO14001 certification.