GB/T709-2006热轧钢板和钢带的尺寸、外形、重量及允许偏差标准解读
GB/T709-2006열알강판화강대적척촌、외형、중량급윤허편차표준해독
Unscramble of GB/T709-2006Dimension, shape, weight and tolerances for hot-rolled steel plates and sheets
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