... steelExecutive StandardQ/20735525-5.3-2010 <gas filter>Character1 High filtering accuracy, large filter area, pressure loss is small, ... to user's requirements, we can product different precision filter elements.3 Filtering precision has 5μ, 20μm, 50μ ... and all kinds of gas equipment s gas purificationMediamanufactured coal gas, LPG, air, gas, town gas, natural gas and other non-corrosive ...