The actual reflecting surface of Metal Coated Mirror is usually a thin coating of silver , gold or aluminum on glass.
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| Material | Diameter | Thickness | Diameter Tolerance | Thickness Tolerance | Surface Quality | Flatness | Parallism | Coating | Reflectivity |
| K9 | 10*2 | 2 | +0/-0.1mm | +/-0.1mm | 40/20 | 3/0.5 | 3' | Silver | R>95% |
| K9 | 10*10*2 | 2 | +0/-0.1mm | +/-0.1mm | 40/20 | 3/0.5 | 3' | Silver | R>95% |
| K9 | D12.7*2 | 2 | +0/-0.1mm | +/-0.1mm | 40/20 | 3/0.5 | 3' | Silver | R>95% |
| K9 | D20*3 | 3 | +0/-0.1mm | +/-0.1mm | 40/20 | 3/0.5 | 3' | Silver | R>95% |
| K9 | 20*20*3 | 3 | +0/-0.1mm | +/-0.1mm | 40/20 | 3/0.5 | 3' | Silver | R>95% |
| K9 | D25.4*3 | 3 | +0/-0.1mm | +/-0.1mm | 40/20 | 3/0.5 | 3' | Silver | R>95% |
| K9 | D30*4mm | 4 | +0/-0.1mm | +/-0.1mm | 40/20 | 3/0.5 | 3' | Silver | R>95% |
| K9 | 30*30*4 | 4 | +0/-0.1mm | +/-0.1mm | 40/20 | 3/0.5 | 3' | Silver | R>95% |
| K9 | D50*5 | 5 | +0/-0.1mm | +/-0.1mm | 40/20 | 3/0.5 | 3' | Silver | R>95% |
| K9 | 50*50*5 | 5 | +0/-0.1mm | +/-0.1mm | 40/20 | 3/0.5 | 3' | Silver | R>95% |
