Product Feature: Repair socket is necessary for repair the hole on pipe. The regular size of repair socket is 7mm,9mm &11mm, and we can also offer 9mm for one more choice. This is great operation when accident hole happen between the wall and small gap, repair with the hole fusion sockets and PPR repair bar. Introduction For Repair Socket Welding: 1. Choose the suitable machine, pipe cutter and drill bit. 2. Find the repair position and clear the surface. 3. Choose the right repair bar 4. Insert the repair bar to the welding socket and heat for proper time. 5. Insert the repair bar to the hole on the pipe and cool down. 6. Cut the rest repair bar.