Main Pipe and Lateral Pipe Integrated
The key to integration is the S collar!
After lining the main pipe, make a hole in the lateral pipe opening that has been lined earlier to complete the complete integration.
The drilling work is performed by the drilling machine attached to the SGICP robot. At this time, the S collar (stainless steel collar) protects the rehabilitated pipe at the joint from scratches caused by the drilling machine, so drilling can be performed reliably.