Topic
| Code | 20000217 |
|---|---|
| Name | chemicals |
| Description | Natural or manmade materials used to produce other materials |
| Lft | 129 |
| Lvl | 2 |
| Rgt | 138 |
| Code | 20000217 |
|---|---|
| Name | chemicals |
| Description | Natural or manmade materials used to produce other materials |
| Lft | 129 |
| Lvl | 2 |
| Rgt | 138 |