Using the method of isothermal forging spheroidal graphite cast iron pipe of good quality can be produced.
利用等温锻造方法可生产优质的球墨铸铁管。
This paper introduced that horizontal centrifugal casting technology is used to develop the composite acicular spheroidal graphite cast iron collar for tension reducing mill of Baogang pipe mill.
介绍了采用卧式离心铸造技术，试制宝钢钢管轧机使用的复合针状球铁张减机辊环的过程。
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