Tank, horizontal or vertical, manufactured in accordance with the Algerian regulations in force, relative to Gaz pressure equipment (Executive Decree N° 90-245 of 18/08/1990). Calculations in relation to parts under pressure, the choice of structural steel grades, welding procedures and various safety recommendations are derived from the CODAP pressure vessel construction code. It is produced from black steel sheet and welding is carried out by certified welders ; the inside of the tank is galvanized or coated with a layer of resin to ensure protection against corrosion.