SOUNDSTONE

Chemicals used in industry; Catalysts for use in manufacture of industrial chemicals; Water glass being soluble glass; Sodium silicates; Potassium silicates; Zinc silicates; Calcium silicates; Sodium silicates for use in industry; Potassium silicates for use in industry; Zinc silicates for use in industry; Calcium silicates for use in industry; Silicates being comprised of one of more of the following combinations of sodium, potassium, zinc or calcium; Chemical sealing preparations for use in the impregnation of porous stones

Machines for working stone surfaces; Stone working machines; Plants being machines for impregnation of natural stones; Plants being machines for stone working