1.used at working site,making duct at site,
2.operated easily, nimble structure, working steady
3.make round duct or flat duct
spiral prestressed corrugated pipe making machine
corrugated pipe making machine
| inner diameter | 35mm | 40mm | 45mm | 50mm | 55mm | 60mm | 65mm | 70mm | 75mm |
| outer diameter(mm) | 40mm | 45mm | 50mm | 55mm | 60mm | 65mm | 70mm | 75mm | 80mm |
| gross weight(kg/m) | 0.37 | 0.43 | 0.48 | 0.56 | 0.63 | 0.7 | 0.76 | 0.86 | 0.96 |
| 80mm | 85mm | 90mm | 95mm | 100mm | 105mm | 110mm | 115mm | 120mm | 125mm | 130mm |
| 85mm | 90mm | 95mm | 100mm | 105mm | 110mm | 115mm | 120mm | 125mm | 130mm | 135mm |
| 1.06 | 1.16 | 1.26 | 1.36 | 1.46 | 1.56 | 1.66 | 1.8 | 2.02 | 2.3 |



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