Butterfly Valves: Torque, Head Loss, and Cavitation Analysis (American Water Works Association Manual)
| Country | USA |
| Brand | Qyeahkj |
| Manufacturer | Qyeahkj |
| Binding | Office Product |
| ItemPartNumber | QY1820 |
| Model | QY1820 |
| Color | Colorful |
| UnitCount | 84 |
| ReleaseDate | 0000-00-00 |