| Label | Id | |
|---|---|---|
| HOPG | Highly Oriented Pyrolytic Graphite | |
| HOPG | Highly oriented pyrolytic graphite | |
| HOPG | highly oriented pyrolytic graphite |
| Label | Id | |
|---|---|---|
| HOPG | Highly Oriented Pyrolytic Graphite | |
| HOPG | Highly oriented pyrolytic graphite | |
| HOPG | highly oriented pyrolytic graphite |