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Firmness test represented by bore and crack test.
| Shape, size and Bore and test |
||
|---|---|---|
| Materials | Firmness test | Firmness test Shape and size |
| Bore test ASTM D2925 | by ASTM D500 (Resistant Character) | |
| Nanobiofilm | No bore symptom | No swell or shrink |
| Synthetic film | No bore symptom | No swell or shrink |
