Square ductile cast iron manhole cover

The ductile cast iron square manhole cover is mainly a manhole cover made of ductile cast iron, The quality of this manhole cover is related to the spheroidization rate . Antirust asphalt paint is commonly used to treat castings  Of course, the surface of the ductile cast iron manhole cover is also treated with anti-rust asphalt paintThe advantage of the ductile iron manhole cover is that the ductile iron manhole cover is lighter than the same type of gray cast iron manhole cover because of the high strength and good toughness of the ductile cast iron.Ductile cast iron square manhole cover has the following characteristics  1. Precision machining wear resistant corrosion bearing car   2. Detail presentation  Precision design weight enough high temperature casting molding beautiful texture  3.Pattern clear quality pursuit Grasp product quality is our attitude to show the best is our pursuit.