79064502
Jul 9, 2008
Apr 20, 2010
Rare earth; phosphor powder; rare earth oxide; rare earth compound; mixed rare earth; rare earth metal
ChemicalsNon-metal refractory materials, namely, blocks, mortars, castable mixes, concrete, ceramic shapes, boards; magnesia cement; non-metal refractory materials used for stoves, namely, blocks, mortars, castable mixes, concrete, ceramic shapes, boards; non-metal refractory bricks and burner tiles; refractory sand
Nonmetallic Building Materials