Grinding refers to the manual method with which retired the damaged layer of wood.
The box on the floor Raboteurs the French artist Gustave Caillebotte, seen as stabbing or scratching wood with metal utensils. The position, the care and the time required for this Job did something hard and artisan.
Currently the process is mechanized, adding machines, vacuums Polisher great power. In addition, New varnishes, which are easier to apply and extend the life and non-toxic use of wood.