| 
                             | 
                        
                            Al2O3 Synthetic Ruby Sapphire Single Crystal Blue 9.0 Hardness2025-02-21 16:28:18 | 
                    
| 
                             | 
                        
                            Al2O3 Synthetic Ruby Sapphire single Crystal Blue 9.0 hardness2025-02-21 16:28:18 | 
                    
| 
                             | 
                        
                            Screw Thread Sapphire Crystal Glass Liquid Valve Corrosion Resistance2022-06-23 10:17:39 | 
                    
| 
                             | 
                        
                            Single Crystal Al2O3 Pressure Resistant Sapphire Glass Tube2022-08-02 17:56:38 | 
                    
| 
                             | 
                        
                            Ultrathin Semicondutor Al2O3 Sapphire Substrate Plate For Laser System2023-04-21 11:12:26 |