The tubes are used by manufacturers of concrete tubes
intended to construction of sewerage gutters to protect their inner surface, as the basalt tubes feature among others the increased abrasive resistance and chemical resistance against the wastewater effects.| DN | wall thickness | length | kg/pcs |
| 300 | 20 | 500 | 30,0 |
| 400 | 20 | 500 | 38,0 |
| 500 | 23 | 500 | 54,3 |
| 600 | 23 | 500 | 64,7 |
| 610 | 23 | 500 | 65,7 |
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Items marked with an asterisk are obligatory.
