PVC
| Date | Clue |
|---|---|
| 2025-05-21 | Contractor's pipe material, for short |
| 2022-12-27 | Plastic used in piping, for short |
| 2022-03-01 | Plastic pipe material, in brief |
| 2021-11-02 | Plumber's pipe material, in brief |
| 2018-12-25 | Plastic pipe material, for short |
| 2011-04-10 | Pipe material, for short |
| 2011-02-27 | Plastic used in piping |
| 2010-10-12 | Common pipe material, briefly |
| 2007-09-18 | Piping compound, briefly |
| 2000-03-01 | Insulation ingredient, for short |