| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | pipe material | Argentina | Commonly made of polyvinyl chloride for gas pipes | 1 |
| 2 | pipe material | Brazil | Commonly made of polyvinyl chloride for gas pipes | 1 |
| 3 | pipe materials | Argentina | PVC (polyvinyl chloride) commonly used for sewage pipes | 1 |
| 4 | pipe materials | Brazil | PVC (polyvinyl chloride) commonly used for sewage pipes | 1 |