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  • Maidir athrú cnaipe a bhrú

    Maidir athrú cnaipe a bhrú

    Push button switch has a variety of structures, can be divided into ordinary press stud type, mushroom head type, self-locking type, since the reset type, rotary type handle, with light, belt light symbols and key type, etc., [1] has a single toggle, double toggle, three buttons and different com...
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