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This Double Wall pipe is good for
drainage , gas supply ,
telecommunications ,irrigations...
A winding to form a pipe) way is applied to this line ,thus its cost is very lower ,and good pipes can be easily made .

Main data:
| Models : | SBG1 | SBG2 | SBG3 |
| Pipes to make (mm) : | Φ300-Φ600 | Φ700-Φ1000 | Φ1200-Φ1500 |
| Designed Power (kW) : | 170 | 230 | 280 |
| Capacity (m/h) : | 0.2 | 0.17 | 0.12 |