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無錫無縫鋼管20#精密管32*2.5化學成分
無錫無縫鋼管20#精密管32*2.5化學成分 __
|
32×2-2.5-3 |
20 |
108×4.5-5-6-7-8-10-12-14-18-20-22 |
75 |
355×6-18-20-25-30-40/52 |
45 |
|
16×2-2.5-4 |
30 |
114×4.5-5-6-7-8-10-12-14-18-20 |
100 |
377×8-12-15-20-24-28 |
128 |
|
18×2.3-4-5 |
20 |
121×4.5-5-6-7-8-10-12-14-16-20 |
102 |
377×30-37-40-45-50 |