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汽车调质曲轴用热轧钢棒
Steel bar for quenched and tempered automotive crankshaft
参考页数：9
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铁水脱硫用钝化镁
Passivation magnesium powder for molten iron desulphurization
参考页数：8P.;A4
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铁水脱硫用搅拌头
Stirring head for desulphurization of hot metal
参考页数：6P.;A4
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铁水脱硫喷枪
Desulphurization injection lance of hot metal
参考页数：6P.;A4
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