韩国龙声YONGSUNG电机株式会社产品主要涉及：YSDNCA系列万能转换开关，YSLDNCA系列带灯转换开关，YSKDNCA系列带钥匙转换开关，YSSL33以及YSNRL34系列组合光字牌。连锁继电器；/锁定型），指示灯，旋转开关，急停开关（按钮/带灯型）；控制用开关类，十字开关，辅助开关，脚踏开关，组合光字牌，方型LED指示灯，YSMR05以及YSMY03系列中间继电器，双位置/闪光/小型/时间继电器，OR-4断电延时继电器，插座，水位自动调节开关，短路回路用/固定式/组合式端子排，交流/直流用微动开关，行程开关，小型微动开关
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