The high toughness ductile cast iron directly obtained at as-cast state had been studied.
对铸态直接获得高韧性球铁进行了研究。
Thus Ductile iron valves can easily replace cast iron or steel valves.
因此球墨铸铁阀门能够方便的替换铸铁或钢阀门。
Ductile iron has yield strength of 40k and cast iron has none.
球墨铸铁的屈服强度是40K，而铸铁没有屈服强度。
Gray cast iron, ductile iron, carbon steel.
灰铸铁，球墨铸铁，碳钢。
Gray cast iron, ductile iron, carbon steel.
灰铸铁，球墨铸铁，碳钢。
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