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                               | 
                              Dimensions | 
                             
                            
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                        Sample data for 1.0 mm wire diameter
                        
                          
                          
                            
                               | 
                              No.1 | 
                              No.2 | 
                              No.3 | 
                              No.4 | 
                              No.5 | 
                              No.6 | 
                              No.7 | 
                              No.8  | 
                             
                            
                              Wire 
                              diameter | 
                              1.00 | 
                              1.00 | 
                              1.00 | 
                              1.00 | 
                              1.00 | 
                              1.00 | 
                              1.00 | 
                              1.00 | 
                             
                            
                              External 
                              diameter | 
                              5.70 | 
                              5.70 | 
                              5.70 | 
                              5.70 | 
                              5.70 | 
                              5.70 | 
                              5.70 | 
                              5.70 | 
                             
                            
                              Central 
                              diameter | 
                              4.70 | 
                              4.70 | 
                              4.70 | 
                              4.70 | 
                              4.70 | 
                              4.70 | 
                              4.70 | 
                              4.70 | 
                             
                            
                              Internal 
                              diameter  | 
                               3.70 | 
                              3.70  | 
                              3.70  | 
                               3.70 | 
                               3.70 | 
                               3.70 | 
                              3.70  | 
                              3.70 | 
                             
                            
                              Free 
                              length  | 
                               8.73 | 
                              11.85  | 
                              15.03  | 
                               18.18 | 
                              21.26  | 
                               24.44 | 
                               27.49 | 
                              31.05 | 
                             
                            
                              Total number 
                              of coils  | 
                               3.50 | 
                               4.50 | 
                              5.50 | 
                              6.50 | 
                              7.50 | 
                              8.50 | 
                              9.50 | 
                              10.50 | 
                             
                            
                               Number of 
                              active coils | 
                              1.50 | 
                              2.50 | 
                              3.50 | 
                              4.50 | 
                              5.50 | 
                              6.50 | 
                              7.50 | 
                              8.50 | 
                             
                            
                               Spring 
                              pitch | 
                              3.00 | 
                              3.00 | 
                              3.00 | 
                              3.00 | 
                              3.00 | 
                              3.00 | 
                              3.00 | 
                              3.00 | 
                             
                            
                               Presetting 
                              load(N) | 
                              2.54 | 
                              2.32 | 
                              2.26 | 
                              2.17 | 
                              2.15 | 
                              2.17 | 
                              2.08 | 
                              2.26 | 
                             
                            
                              Presetting 
                              length  | 
                              6.00 | 
                              8.50 | 
                              11.0 | 
                              13.00 | 
                              15.00 | 
                              17.50 | 
                              20.00 | 
                              22.00 | 
                             
                            
                               Both ends 
                              grinding | 
                              No | 
                              No | 
                              No | 
                              No | 
                              No | 
                              No | 
                              No | 
                              No | 
                             
                          
                         
                        
                         
                        Sample data for 0.5 mm wire diameter
                        
                          
                          
                            
                               | 
                              No.1 | 
                              No.2 | 
                              No.3 | 
                              No.4 | 
                              No.5 | 
                              No.6 | 
                              No.7 | 
                              No.8  | 
                             
                            
                              Wire 
                              diameter | 
                              0.50 | 
                              0.50 | 
                              0.50 | 
                              0.50 | 
                              0.50 | 
                              0.50 | 
                              0.50 | 
                              0.50 | 
                             
                            
                              External 
                              diameter | 
                              3.00 | 
                              3.00 | 
                              3.00 | 
                              3.00 | 
                              3.00 | 
                              3.00 | 
                              3.00 | 
                              3.00 | 
                             
                            
                              Central 
                              diameter | 
                              2.50 | 
                              2.50 | 
                              2.50 | 
                              2.50 | 
                              2.50 | 
                              2.50 | 
                              2.50 | 
                              2.50 | 
                             
                            
                              Internal 
                              diameter  | 
                              2.00 | 
                              2.00 | 
                              2.00 | 
                              2.00 | 
                              2.00 | 
                              2.00 | 
                              2.00 | 
                              2.00 | 
                             
                            
                              Free 
                              length  | 
                              4.10 | 
                              5.60 | 
                              7.10 | 
                              8.50 | 
                              9.90 | 
                              11.60 | 
                              13.20 | 
                              14.80 | 
                             
                            
                              Total number 
                              of coils  | 
                               3.50 | 
                               4.50 | 
                              5.50 | 
                              6.50 | 
                              7.50 | 
                              8.50 | 
                              9.50 | 
                              10.50 | 
                             
                            
                               Number of 
                              active coils | 
                              1.50 | 
                              2.50 | 
                              3.50 | 
                              4.50 | 
                              5.50 | 
                              6.50 | 
                              7.50 | 
                              8.50 | 
                             
                            
                               Spring 
                              pitch | 
                              1.20 | 
                              1.20 | 
                              1.20 | 
                              1.20 | 
                              1.20 | 
                              1.20 | 
                              1.20 | 
                              1.20 | 
                             
                            
                               Presetting 
                              load(N) | 
                              0.56 | 
                              0.66 | 
                              0.71 | 
                              0.63 | 
                              0.41 | 
                              0.45 | 
                              0.43 | 
                              0.36 | 
                             
                            
                              Presetting 
                              length  | 
                              2.50 | 
                              3.00 | 
                              3.50 | 
                              4.50 | 
                              7.00 | 
                              8.00 | 
                              9.50 | 
                              11.00 | 
                             
                            
                               Both ends 
                              grinding | 
                              No | 
                              No | 
                              No | 
                              No | 
                              No | 
                              No | 
                              No | 
                              No | 
                             
                          
                         
                        
                         
                         | 
                       
                      
                        | 
                        
                         | 
                       
                      
                        
                          
                          
                          
                            
                               | 
                              Dimensions | 
                             
                            
                               | 
                               | 
                             
                            
                              |   | 
                                | 
                             
                            
                                | 
                                | 
                             
                          
                         
                         | 
                       
                      
                        
                        Sample data for 1.0 mm wire diameter
                        
                          
                          
                            
                               | 
                              No. 1 | 
                              No. 2 | 
                              No. 3 | 
                              No. 4 | 
                              No. 5 | 
                              No. 6 | 
                              No. 7 | 
                              No. 8 | 
                              No. 9 | 
                              No.10 | 
                             
                            
                              Wire 
                              diameter | 
                              1.00 | 
                              1.00 | 
                              1.00 | 
                              1.00 | 
                              1.00 | 
                              1.00 | 
                              1.00 | 
                              1.00 | 
                              1.00 | 
                              1.00 | 
                             
                            
                              External 
                              diameter | 
                              5.70 | 
                              5.70 | 
                              5.70 | 
                              5.70 | 
                              5.70 | 
                              5.70 | 
                              5.70 | 
                              5.70 | 
                              5.70 | 
                              5.70 | 
                             
                            
                              Central 
                              diameter | 
                              4.70 | 
                              4.70 | 
                              4.70 | 
                              4.70 | 
                              4.70 | 
                              4.70 | 
                              4.70 | 
                              4.70 | 
                              4.70 | 
                              4.70 | 
                             
                            
                              Internal 
                              diameter  | 
                               3.70 | 
                               3.70 | 
                               3.70 | 
                               3.70 | 
                               3.70 | 
                               3.70 | 
                               3.70 | 
                               3.70 | 
                               3.70 | 
                               3.70 | 
                             
                            
                              Free 
                              length  | 
                              19.70 | 
                              23.40 | 
                              29.20 | 
                              33.80 | 
                              39.20 | 
                              44.40 | 
                              49.50 | 
                              53.60 | 
                              59.30 | 
                              63.50 | 
                             
                            
                               Number of 
                              active coils | 
                              9.00 | 
                              13.00 | 
                              18.00 | 
                              22.00 | 
                              27.00 | 
                              32.00 | 
                              36.00 | 
                              41.50 | 
                              45.50 | 
                              50.00 | 
                             
                            
                               Presetting 
                              load(N) | 
                              0.86 | 
                              0.90 | 
                              0.93 | 
                              0.95 | 
                              1.00 | 
                              0.95 | 
                              0.91 | 
                              0.94 | 
                              0.95 | 
                              0.94 | 
                             
                            
                              Presetting 
                              length  | 
                              24.20 | 
                              29.90 | 
                              38.20 | 
                              44.80 | 
                              52.70 | 
                              60.40 | 
                              67.50 | 
                              74.30 | 
                              82.00 | 
                              88.50 | 
                             
                          
                         
                        
                         
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