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About product and suppliers:
        Alibaba.com offers 10,196 cast iron manhole covers products. About 79% of these are cast & forged, 2% are metal building materials, and 1% are sewer. 

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

There are 10,196 cast iron manhole covers suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of cast iron manhole covers respectively. 

Cast iron manhole covers products are most popular in Africa, South America, and Eastern Europe. 

You can ensure product safety by selecting from certified suppliers, including 4,902 with ISO9001, 2,165 with Other, and 524 with ISO14001 certification.