HRF-HD5NS脚踏开关HRF-HD5NX带防护盾大型脚踏开关HRF-HD202P脚踏开关HRF-HD301P脚踏开关HRF-M1小型塑料脚踏开关HRF-M2小型塑料脚踏开关HRF-M3塑料脚踏开关HRF-M5密封防水型脚踏开关HRF-M6密封防水双位互锁脚踏开关HRF-M52密封防水型脚踏开关HRF-MD1脚踏开关HRF-MD2脚踏开关HRF-MD2S脚踏开关HRF-MX1钢板型脚踏开关HRF-MX1A钢制小型脚踏开关)