Xiangyang Xinyongxinhe Road Facilities Co., Ltd.
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Ductile iron round manhole cover
Ductile iron manhole cover is a kind of nodular cast iron product. Spheroidal graphite is obtained through nodularization and inoculation treatment, which effectively improves the casting.
The mechanical properties of iron, in particular, improve its ductility and toughness, thereby obtaining higher strength than carbon steel. Ductile iron was in the 1950s
A high-strength cast iron material developed has comprehensive properties close to that of steel. It is based on its excellent properties that it has been successfully used in casting
Some parts with complex forces and high requirements on strength, toughness and wear resistance. Ductile iron has rapidly developed into an application second only to gray iron.

A very wide range of cast iron materials. The so-called "steel instead of steel" mainly refers to ductile iron.

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