化肥专用管 石油裂化管 |
20G Q345 1Cr5Mo 16Mn （GB6479—2000） 12CrMo 15CrMo 20 （GB9948—88 ) |
| 18*3-4 |
114*5-6-8-8.5-9-10-11-12-12.5-14 |
| 22-3-4-5 |
127*6-10-12-14-16 |
| 25-3-3.5-4-4.5 |
133-10-12-14-16-18-20 |
| 27*4-5-5.5 |
152*7-8-9-10-12-14-18-25 |
| 32*3.5-4-4.5-5 |
159*6-6.5-7-8-8.5-10-12-14-16-18-25 |
| 34*3-4-4.5-5-6.5 |
219*7-8-10-12-13-14-15-16-18-20-25 |
| 38*3-4-5 |
273*8-9-10-11-12-13-14-15-16-18-20-22-25-30 |
| 45*4-5 |
325*8.5-9-9.5-10-12-13-15-16-17-18-22-25-28-30 |
| 48*3.5-4-4.5-5-6-7 |
326*9.5-11-15-19-28-30 |
| 51*5-6 |
377*9.5-10-11-14-15-16-25 |
| 57*5-6 |
406*9.5-13-17-26-32 |
| 60*4-4.5-5.5-6-7-8-9-10 |
426-10-13-17-22-24-35 |
| 76*5-6-7-8-10 |
457*9.5-10-11-14-19-24-35 |
| 89*4-4.5-5-6-6.5-7-8-9-10-11-12-14 |
508*15-20-26 |
| 108*6-7-8-9-10-12 |
530*15-18-26-28 |
