GB/T 24721.4
GB/T 24721.4 (Glass fiber reinforced plastic products for highway - Part 4: Non-pressure communications well lid)· GB (China) · 9 materials
| Designation | Material group | |
|---|---|---|
| BD-350x350 | Polyesters (UP...) | chevron_right |
| BD-450x450 | Polyesters (UP...) | chevron_right |
| BD-550x550 | Polyesters (UP...) | chevron_right |
| BD-730x530 | Polyesters (UP...) | chevron_right |
| BD-φ450 | Polyesters (UP...) | chevron_right |
| BD-φ550 | Polyesters (UP...) | chevron_right |
| BD-φ650 | Polyesters (UP...) | chevron_right |
| BD-φ700 | Polyesters (UP...) | chevron_right |
| BD-φ730 | Polyesters (UP...) | chevron_right |