?型号Model                 使用线径范围 (mm)                  张力范围 (g.f)  
RM-300                          0.02-0.06                                    3-30  
RM-201                         0.04-0.12                                   10-100  
RM-301                         0.06-0.16                                   20-200  
RM-501                         0.10-0.25                                   30-350  
RM-152                        0.12-0.35                                   60-600  
RM-202                         0.15-0.45                                 100-1000