MG-2050A: 10 pair without GDT , with dust cover 
MG-2050B: 8 pair without GDT withyellow mark 
1. Over-voltage Protection Magazine 
2. 8 pairs, 10 pairs 
3. 2-pole, 3pole 
4. With or without GDT
5.OEM 
6.Package : we can do as your request 
                         
                        
                            
                        
                        
                        
                            
                            
                                Limited warranty 12 months for parts and 12 months for labor.  
Support URL: http://www.firstsing.com 
Support Phone Number: 86-0755-29889139
                                
                                              
                             
                         
                        
                          
                            
                                
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