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2 0 12 90 / 2 0 2 10  RACING SPARK PLUGS

50.5mm  φ                                      50.5mm   Heat range
                                                       Spark plug type
50.5mm                Heat range               53.0mm  Terminal shape
                    Spark plug type                    Center electrode material
53.0mm              Terminal shape             53.0mm  Ground electrode material
                    Center electrode material
                    Ground electrode material           Heat range
                                                       Spark plug type
                       Heat range                      Terminal shape
                    Spark plug type                    Center electrode material
                    Terminal shape                     Ground electrode material
                    Center electrode material
                    Ground electrode material           Heat range
                                                       Spark plug type
                       Heat range                      Terminal shape
                    Spark plug type                    Center electrode material
                    Terminal shape                     Ground electrode material
                    Center electrode material
                    Ground electrode material

                       Heat range
                    Spark plug type
                    Terminal shape
                    Center electrode material
                    Ground electrode material

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