燃气电磁阀: 德国DUNGS冬斯燃气电磁阀: MV5100/5S MV2125/5S MV2150/5S MVD203/5 MVD225/5 MVD503/5 MVD505/5 MVD507/5 MVD2025/5 MVD2040/5 MVD2050/5 MVD2065/5 MVD505