
使用18号以上的铸造铁水经添加球化剂后,经过离心球墨铸铁机高速离心铸造成的管道,称之为“球墨铸铁管”,简称为球管、球铁管和球墨铸管等。
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The pipes made by high speed centrifugal casting with No. 18 or above molten iron after adding nodularizing agent are called "ductile iron pipes", which are called ductile iron pipes, ductile iron pipes and ductile iron pipes for short.