Precision Quartz
                                                                  
                                                                  
                                                                  
                                                                  
                                                                  
            
            
                                                                                            
                                                                                            
                                                                                            
                                                                                            
                                                                                            | Precision Quartz | 
                                             Semiconductor wafer fabrication diffusion, etching and other processes; Semiconductor wafer wet cleaning process; Semiconductor silicon wafer epitaxial EPI process;  | 
                                        
                                             LED epitaxial MOCVD; chip technology;  | 
                                        
                                             Optical fibre precast rod: furnace core tube, blowtorch and supporting fastener;  | 
                                        
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