As for the repair business in Japan, the light repair is main more than the heavy repair.
The floor type is good at the light repair.
The super floor system corresponds about the heavy repair and so the light repair.
The Japanese think much of the efficiency per stole.Then the quality, too
The flat floor can increase the number of works quantity per stole.
The rail which doesn't have to rust is always beautiful.
The material of the rail is an aluminum alloy.
The rail is always beautiful because it doesn't rust.
The rail doesn't rust even if it washes a floor with water.