By Tana on the floor, plaster, sand, adjust., or according to the purpose of the design by the contractor will be required to propose a method and preparation of the samples, the supervisor approval first.
The paint on the cement floor leveling finishing. Or for the purpose of design The contractor would have to offer and how to apply for sample preparation prior supervisory approval.
On the ground by cement, sand, adjustable dress smooth skin. Or according to the purpose of the design. By the contractor will be required to present how to apply and preparation of samples for supervisor approval first.