Ball-milled cast iron well cover is a kind of cast iron products, well cover is generally divided into round and square, the most common is to see sewage well cover, drainage well cover, cable well cover and so on, on the road where there are underground passages through the cover is used for the well cover. Cast iron was already used in the Western Han Dynasty, that is, in 2000, which is also a miracle in the history of metallurgy. Later, cast iron was widely used in industry, in order to meet the needs of various enterprises, ball-milled cast iron gradually appeared many models.
Square ball-milled cast iron covers are mainly used in rural areas and cable wells, because the square is tightly sealed, it is not easy to let any liquid such as rainwater flow into the well, in order to better protect the material in the well.
The round cast iron ball grinding well cover is mainly used for sewage, rainwater and other sewage passages。 The round cast iron well cover can be seen everywhere on the wide road。
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