20G高壓鍋爐管133*4.5抗氧化腐蝕性能 無(wú)錫20G無(wú)縫鋼管規(guī)格表
25×2.5-3-4-5-6
|
133×4.5-6-8-12-14-16-18-20-25-30
|
402×10-15-20━25-30-35
|
28×3-3.5-4-5-6
|
140×5-6-7-8-9-10-12━14-16-20-22
|
406×10-20━25-28-35-40
|
32×3.5-4-5-6-8
|
146×4.5-6-8-12-14-16-18-20-25-30
|
426×10-12-14-16-20-25-30-35-40
|