The repairing unit, which is placed after the polishing machine in this factory, gives a slight heat to the stone to remove slight stains on the stone if needed and after that, depot the stone.
This process could be conducted before polishing machine the time the stone or the slab comes out from the online resin curing furnace to cover and retouch the flaws on the stone by this machine.
As you know, this is the Persian Silk stone which is directly entered into the polishing machine without a break, and as you can see, the crack is completely closed, epoxy is glassy and well polished and the stone is easily ready to use.