260 mm×300 mm轴承钢连铸坯生产φ70~φ75 mm棒材的工艺实践
260 mm×300 mm축승강련주배생산φ70~φ75 mm봉재적공예실천
Process Practice of Producing φ70 ~φ75 mm Bearing Steel Bar by 260 mm × 300 mm Continuous Casting Slab
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