Page 124 - ngk-sytytys-hehkutulpat
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LINE UP                                                    Heat range
                                                          Spark plug type
         φ                                                Terminal shape
                                                          Center electrode material
                             Heat range                   Ground electrode material
                          Spark plug type
                          Terminal shape                   Heat range
                          Center electrode material       Spark plug type
                          Ground electrode material       Terminal shape
                                                          Center electrode material
         φ                                                Ground electrode material

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

          φ

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

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