Molding and die-casting tools, namely, porous steel inserts for facilitating removal of trapped air and gas from a mold cavity during molding and die casting processes being machine parts for dies and molds

An etching mixture of one or more acids in a typically viscous liquid carrier designed to clean and prepare a hard substrate such as metal, ceramic, porcelain and other surfaces to accept a coating

Countertops and coverings, counter materials and tops; porcelain coverings, materials, and tops; and wall and floor tiles, not of metal.