Ceramic powder for use in manufacturing using investment casting technology; oxide powders, namely, rare earth oxides and inorganic oxides in powder form

Ceramic powders used as face coat materials in the production of ceramic shells, cores, and other ceramic parts in the investment casting industry; rare earth oxides and inorganic oxides in the form of powders

ceramic powders consisting of rare earth oxides and/or anorganic oxides used as face coat materials in the production of ceramic shells, cores and other ceramic parts in the investment casting industry