Electrical life: 50000primary Characteristic: cross current single velocity switch, which contain self-lock, or no self-lock.
电器寿命：50000主要特征：交流单速开关，带自锁或无自锁。
Electrical life: 50000primary Characteristic: cross current single velocity switch, which contain self-lock, or no self-lock.
电器寿命：50000主要特征：交流单速开关，带自锁或无自锁。
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