Spiral Winding Trenchless Pipe Repair
This pipe is made of spirally wound strips. The strips are extruded in the factory by an extruder and then rolled into strips and shipped to the construction site. The trenchless spiral winding machine is assembled in the inspection well and then the strips are wound into pipes. It can be operated with water without damaging the road surface, has little impact on traffic, and is easy to construct and fast.