The centrifugal ductile cast iron pipe in accordance with ISO 2531 91 demands was produced.

通过试验得出了最佳退火工艺,获得了符合国际标准ISO2531-91要求的离心铸造球铁管.

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The morphology and distribution of vanadium in bainite ductile cast iron were studied.

研究了钒在贝氏体球墨铸铁中的存在形态及其分布.

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The annealing process of centrifugal ductile cast iron pipe by the heated mould method is studied.

研究了热模法离心铸造球铁管的退火工艺.

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For heavy - pressure . form, plunge grinding , snagging of such materials as stainless steel ductile cast iron etc.

适于重磨削、成型磨削 、 切入磨削及钢材荒磨,可用于不锈钢和特种球墨铸铁磨削加工.

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The valve body and disc of valve shall be made of ductile cast iron.

阀门的阀体、阀板制造材料应该是球墨铸铁.

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