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The SZJ-ZS type rotary table speedometer system consists of an input power supply (220/110VAC), a rotary table speed sensor, a connecting cable, a 220/110VAC power board, and a signal processing and display board. The power supply provides working voltage for the system, the sensor collects speed signals, and the signals are transmitted to the signal processing and display board through the cable for processing and speed display. SJPETRO#RGPETRO#DFXK#ZYT#BPMCO#LANSHI#NOV#NATIONAL OILWELL WARCO#KERUI#HH#HONGHUA#BAOJI#BOMCO#CPTDC#SJ Contact info What's app +8615972752793 Luben@youlongpetro.com