C250 EN124 ductile cast iron manhole covers round shape sewer cover
Manhole covers are manufactured for road construction, natural gas, water supply and drainage, telecommunications. Manhole covers and gratings should be smooth, no blisters, holes, distortion or any other defects.
500mm*500mm,600mm*600mm,700mm*700mm,800mm*800mm, 850mm*850mmand so on.Many size can be choose,or according to customer's drawing or requirements.
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