Soldo is a limit switch box manufacturer since 1996. High experience in Oil and Gas, Petrochemical and hazardous area application in general.Limit Switch Boxes, Limit Switch Boxes with integrated Solenoid Valves, Limit switch, Manual Valve Applications, Position Transmitters, proximity, valve automation, position, electrical feedback, SY, SW, SK, SQ Exd, Exia, explosion proof , intrinsically safe.