646GE1 646GE2 646GE11 646GE3 646GE5 646GEM1 646GEM2 646GEM11 646GEM3 646GEM5
646GZE通用加强防爆型压力开关
646GZE1 646GZE2 646GZE11 646GZE3 646GZE5
646GZE-7011系列
646GZE1-7011 646GZE2-7011 646GZE11-7011 646GZE3-7011 646GZE5-7011