我公司常年销售40Cr圆钢、Q345B化肥管、20G无缝管,规格齐全,价格便宜。
40Cr圆钢 Ф12mm 40Cr 永钢 3480
40Cr圆钢 Ф18-25mm 40Cr 永钢 3469
40Cr圆钢 Ф10/12mm 40Cr 富钢 3428
40Cr圆钢 Ф14-24mm 40Cr 富钢 3458
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