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    CASE:  Jiuhua mountain tunnel | Shanghai-Nanjing expressway | High-speed rail | Nanjing subway | Nanjing Yangtze river tunnel | Xuanwu lake tunnel
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     Sectional material
     Deformed Steel Bar
     Stainless Steel Special Steel
     Alloy steel—bar
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     Frozen steel wire
     Carbon plate
     Alloy structural steel
     Pipe
     High quality carbon structural steel
     Low alloy plate
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     Free cutting steel structure
     Special Steel
     Rail steel
     Tool steel
     Copper
     Alloy steel
      HONORS
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