1. ISO11120 certified 2. With frame pipeline fittings&valves 3. 8 tube skids 4. Operation pressure 20MPa or 25MPa... We supply Tube Skids :The Tube Trailers can be used to transport compressed gas such as Compresses Natural Gas (CNG), Hydrogen, Nitrogen, Helium, etc. between mother and daughter stationThe Tube Trailers are comply with DOT, ISO 11120, and can be manufactured based on customer's ...