If you cannot do rectangle, please quote me 250mm square and 2 or 3mm thickType:Clear Quartz PlateApplication: Furnace Sight Glass quartz windowsThickness:2mm Shape: RectangleProduct Name:Quartz Glass Disc as Oil Level Sight GlassShape:squareLength: 150mmWidth: 230mmThickness: 2mmOperating Temperature:1200?Soften Show More...