20號(hào)\45號(hào)無(wú)縫管規(guī)格表  | 
規(guī)格  | 規(guī)格  | 
89×4.5-8-10-12-14-16-18-20  | 245×25-28-30-34-40  | 
95×4.5-6-8-10-12-14-16-20  | 273×7-9-12-15-18-20-25  | 
102×4.5-5-6-7-8-10-12-14-16-20  | 273×30-35-38-40-45-50  | 
108×4.5-5-6-7-8-10-12-14-18-20-22  | 299×8-12-16-20-24-28  | 
114×4.5-5-6-7-8-10-12-14-18-20  | 299×30-32-36-38-40-45  | 
121×4.5-5-6-7-8-10-12-14-16-20  | 325×8-12-14-18-38-42  | 
127×4.5-5-6-7-8-10-12-14-16-20  | 325×28-32-34-38-42  | 
133×4.5-6-8-12-14-16-18-20-25-30  | 351×10-16-20-25-40  | 
140×5-6-7-8-9-10-12-14-16-20-22  | 355×6-18-20-25-30-40/52  | 
146×4.5-6-8-12-14-16-18-20-25-30  | 377×8-12-15-20-24-28  | 
152×4.5-6-8-12-14-16-18-20-25-30  | 377×30-37-40-45-50  | 
159×4.5-6-10-12-14  | 402×10-15-20-25-30-35  | 
159×16-18-20-22-25-30  | 406×10-20-25-28-35-40  | 
168×8-10-12-14-20-25-30-35  | 426×10-12-14-16-20-25-30-35-40  | 
180×8-12-16-25-30  | 450×10-12-14-16-20-25-34-40-50  | 
180×32-34-38-40-45-50  | 480×10-12-14-16-18-20-25-30-40  | 
194×6-8-12-16-20-25-30-40-45-50  | 500×10-12-14-16-20-25-34-40-50  | 
203×6-7-10-15-20-25-30  | 510×10-12-14-16-20-25-34-40-50  | 
203×32-36-40-45-50  | 530×10-12-14-16-18-20-30-40  | 
219×6-8-12-16-18-20-25  | 560×10-14-16-20-25-30-40-50-60  | 
219×30-40-45-50-55  | 580×10-14-16-20-30-40-50-70  |