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About product and suppliers:
        Alibaba.com offers 3,239 slotted duct products. About 83% of these are wiring ducts, 3% are hvac systems & parts. 

A wide variety of slotted duct options are available to you, such as slotted, solid. You can also choose from free samples, paid samples. 

There are 3,247 slotted duct suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Malaysia, and India, which supply 98%, 1%, and 1% of slotted duct respectively. 

Slotted duct products are most popular in Domestic Market, Southeast Asia, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 3,239 with ISO9001, 2,187 with Other, and 186 with ISO14001 certification.