... rate:500 Cubic meters per hour Applicable Medium:natural gas,town gas ,LPG etc. DescriptionRX series voltage regulator have ... , only for user selection reference. Applicable mediumnatural gas,town gas,LPG and other non-corrosive gasCharacteristics1. set pressure ... wall brush red iron oxide alkyd rust-inhibiting primer, anti-corrosion ability6. can be unattended, just periodically check natural gas ...