900 防爆机械式波纹管压力开关产品特点：压力设定点可调输出信号： SPDT压力范围：-0.9~40bar螺纹连接：female G1/4, male G1/2密封材料：NBR电气连接：箍位螺丝防爆证书：Ex db eb IIC T6 Gb Ex tb IIIC T80 Db