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In the first eight months of this year, a total of 233,729 tons of steel plate were undergone crack detection at the medium plate coil plant of Nanjing Steel with a qualified ratio of 99.24 percent. That compared to 95 percent on average in domestic market and 98 percent in the international market.

The mill has developed China's first 6 mm × 3,150 mm shipbuilding steel for Dalian Shipyard this year