Specification for low voltage switchgear and controlgear for industrial use - mounting rails - top hat rails 35 mm wide for snap - on mounting of equipment 工业用低压开关设备和控制装置规范.支承轨.设备快速安装用35mm宽凹顶轨
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Specification for low voltage switchgear and controlgear for industrial use - mounting rails - top hat rails 75 mm wide for snap - on mounting of equipment 工业用低压开关设备和控制装置规范.支承轨.设备快速安装用75mm宽凹顶轨