| Value | Category | Cases | |
|---|---|---|---|
| ALLUMINIUM | 1 |
12.5%
|
|
| ONE PART USES COROGATED ITON SHEETS AND THE OTHER PART THATCHED | 1 |
12.5%
|
|
| TIMBER | 1 |
12.5%
|
|
| ZINC | 3 |
37.5%
|
|
| ZINC ROOF | 1 |
12.5%
|
|
| ZNIC | 1 |
12.5%
|