37 INSTALLATION OF COMMERCIAL, INDUSTRIAL, INSTITUTIONAL AND RESIDENTIAL FLOORING MATERIALS, BUT NOT CARPETING; POURING, FORMING AND FINISHING CONCRETE; INSTALLATION OF FLOORS USING NATURAL AND SYNTHETIC STONE
40 APPLICATION OF COATINGS OF RIVERWASHED STONE AND RESINS TO EXISTING CONCRETE SLABS FOR BEAUTIFICATION AND TO INCREASE DURABILITY; CUTTING OF NATURAL AND SYNTHETIC STONE FOR FLOORS