It costs more than 90 million won to install an automatic waterproof board in apartments and other apartments
You can do it manually, too 
Masan Bay Hydraulic Waterproof Wall 200 m
I guess the wall contributes a bit
It costs more than 90 million won to install an automatic waterproof board in apartments and other apartments
You can do it manually, too
Masan Bay Hydraulic Waterproof Wall 200 m
I guess the wall contributes a bit