3 cleaning preparations in the nature of blended chemicals for removing paint, stains and atmospheric dirt from masonry, natural stone, tile, concrete, metal, glass, wood and other similar porous and non-porous building materials; cleaning preparations in the nature of blended chemicals for use as a rust remover, asphalt and tar remover, degreaser, for masonry, tile, concrete, natural stone, metal, glass, wood and mildew; lime solvent for cleaning masonry; metallic stain remover, limestone prewash, limestone afterwash, smoke remover, graffiti remover, stain remover for carpets, fabric and upholstery stripping preparation for paint and other similar coatings