Precision Casting Sand of Refractory Sand with Low Thermal Expansion and High Alumina 1. Production Introduction Precision Casting Sand of Refractory ...
200 Mesh Mullite Powder of Refractory Sand for Mold Making of Lost Wax Casting and Refractory Products 1. Production Introduction Mullite Refractory ....
16-30 Mesh Mullite Refractory Sand for Mold Making of Precision Casting and Refractory Products 1. Production Introduction Mullite Refractory sand is ...