PN EN 622-4
PN EN 622-4 (Fibreboards - Specifications - Part 4: Requirements for softboards)· PN (Poland) · 5 materials
| Designation | Material group | |
|---|---|---|
| Type SB | Fiberboards | chevron_right |
| Type SB.E | Fiberboards | chevron_right |
| Type SB.H | Fiberboards | chevron_right |
| Type SB.HLS | Fiberboards | chevron_right |
| Type SB.LS | Fiberboards | chevron_right |