... 1100C=2012F 3.surface: polished 4.shape:sauqre,round,rectangler and arch et 1.size:300mm*200mm* ... 2012F 3.surface: polished4.shape:sauqre,round,rectangler and arch etTransparent Quartz glass plateHeat resistant temperature:1200 degree CThe ... 5-50mmQuartz disc: 10-500mm diameterClear quartz plate,quartz sheet,round quartz plate,rectangular quartz plate,quartz panelUsed for window material,mask substrate ...