pressure vessel air storage tank 1 Materials:carbon steel 2 Volum:300L 2000L 3 working pressure :0.3Mpa 0.6Mpa 0.8 Mpa 1.0Mpa 1.3Mpa 1.6Mpa , up to 10Mpa 4 Vertical Type 5Each tank with a <Product Qualification certificate> by the National Quality Engineering Supervision Bureau.6Equipped with safety valve, pressure gaugeyou can see the output pressure immediately,Draining ValvesWe beleive in great service,everytime ,all the time !