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C Si Mn P

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S Ni Cr Mo

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C Si Mn P

0.07 1.00 1.00 0.040

S Ni Cr Mo

0.030 3.00-5.00 15.5-17.5 -

Cu Nb ¨ä¥L

3.00-5.00 0.15-0.45 -

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C Si Mn P

0.07 1.00 1.00 0.040

S Ni Cr Mo

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Cu Nb+Tao ¨ä¥L

3.00-5.00 0.15-0.45 -

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C Si Mn P

0.07 1.00 1.00 0.040

S Ni Cr Mo

0.030 3.00-5.00 15.5-17.5 -

Cu Nb+Tao ¨ä¥L

3.00-5.00 0.15-0.45 -

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