76138852
Sep 29, 2000
Apr 29, 2003
Chemicals for industrial applications, namely metal oxides and blends of metal oxides for use in enamels and as components of ceramic pastes and of refractory materials
ChemicalsRefractory materials and building materials based on metal oxides, namely refractory bricks, refractory blocks, ceramic shapes for use in refractory furnaces, refractory mortars, refractory castable mixes
Nonmetallic Building Materials