產(chǎn)品詳情
牌號(hào)
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化學(xué)元素(質(zhì)量分?jǐn)?shù))/%
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C
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Si
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Mn
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Cr
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Ni
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Mo
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Nb
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V
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P
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S
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Alt
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Q245R
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≤0.20
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≤0.35
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0.50-1.00
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≤0.025
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≤0.010
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≥0.020
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