About product and suppliers:
            2,477 square manhole cover products are offered for sale by suppliers on Alibaba.com, of which other roadway products accounts for 26%, casting accounts for 15%, and other fabrication services accounts for 12%. 

A wide variety of square manhole cover options are available to you, 

There are 1,679 suppliers who sells square manhole cover on Alibaba.com, mainly located in Asia. The top countries of suppliers are Turkey, China, from which the percentage of square manhole cover supply is 1%, 98% respectively.