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Cast iron takes the largest proportion of all the materials made into a manhole cover. The iron melted and then cast in a mold comes out what we called cast iron. Typical manhole covers are cast using gray cast iron which contains the element iron and the alloying elements carbon and silicon. Read More
Its main products include composite manhole covers, water meter, power and gas industry meter boxes , Drainage grate, customized composite products and SMC materials.