Zirconia Block, Zirconia Disc, PMMA manufacturer / supplier in China, offering 3D Multilayer Zirconia Blocks for for Dental Crowns and Bridges Milling, 700-1200MPa 43-57% 3D Prism Multilayer Dental Zirconia Block Disc Blank, High-Precision 5 Axis Zirconia Milling Machine for Dental Labs and so on.