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About product and suppliers:
        Alibaba.com offers 7,633 drainage cover products. About 36% of these are metal building materials, 19% are cast & forged, and 4% are drains. 

A wide variety of drainage cover options are available to you, such as stainless steel, iron. You can also choose from free samples, paid samples. 

There are 7,619 drainage cover suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Malaysia, which supply 99%, 1%, and 1% of drainage cover respectively. 

Drainage cover products are most popular in Southeast Asia, South America, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 3,675 with ISO9001, 1,098 with ISO14001, and 1,034 with Other certification.