| URL | Priority | Change frequency | Last modified (GMT) |
|---|---|---|---|
| https://www.mechanicalengineerblog.com/2021/01/24/specification-of-pipe-api-5l-grade-b-gr-x52-gr-x42/ | 20% | Daily | 2021-01-27 08:43 |
| https://www.mechanicalengineerblog.com/2021/01/22/pipe-charts-schedule-sch-20-40-60-80-120-wall-thickness/ | 20% | Daily | 2022-12-11 00:52 |
| https://www.mechanicalengineerblog.com/2021/01/10/understanding-pressure-rating-class-150-300-400-600-900-1500-as-per-asme-b16-5/ | 20% | Daily | 2021-02-09 16:45 |