Diameter  | 
         2"  | 
         3"  | 
         4"  | 
         5"  | 
         6"  | 
         8"  | 
        
Thickness (um)  | 
         Depends on Request  | 
        |||||
Material  | 
         Fused Silica  | 
        |||||
Grade/Brand  | 
         JGS2/JGS1/JGS3  | 
        |||||
Surface Finished  | 
         DSP/SSP  | 
        |||||
TTV (um)  | 
         <8  | 
         <10  | 
         <10  | 
         <10  | 
         <15  | 
         <20  | 
        
Bow/Warp (um)  | 
         <30  | 
         <30  | 
         <40  | 
         <40  | 
         <60  | 
         <60  | 
        
Ra (nm)  | 
         <1  | 
        |||||
S/D (um)  | 
         40/20  | 
        |||||