1. ZT310-T fuel tank middle cover (bright orange) 
                                                
                                             
                                            
                                         
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                                                        2. ZT310 electronic fuel tank lock 
                                                
                                             
                                            
                                         
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                                                        3. ZT250-S tank cover rotating stents 
                                                
                                             
                                            
                                         
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                                                        4. ZT350-GK fuel tank outer cover turning holder 
                                                
                                             
                                            
                                         
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                                                        5. ZT250-S rotating axle of fuel tank outside cover 
                                                
                                             
                                            
                                         
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                                                        6. ZT250-S Fuel tank cover rotation damping 
                                                
                                             
                                            
                                         
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                                                        7. ZT310-T fuel tank outer cover (bright orange) 
                                                
                                             
                                            
                                         
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                                                        9. Non-standard bolt M6×16 (304 stainless steel) 
                                                
                                             
                                            
                                         
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                                                        10. ZT310-T storage box cover rotating shaft limit circlip 
                                                
                                             
                                            
                                         
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                                                        11. ZT250-S torsion spring of tank outer cover rotating shaft 
                                                
                                             
                                            
                                         
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                                                        12. KD150-GK fuel tank outer cover torsional spring 
                                                
                                             
                                            
                                         
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