Specific Weight of CNG Cylinders * | 
  
  
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    | CNG Tip I | 
    Complete metal cylinder made of carbon or light steal. | 
  
  
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    | CNG Tip II | 
    Steal or aluminium metal covered and filaman top wrapped as a circle inside filaman resin matrix cylinder. | 
  
  
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    | CNG Tip III | 
    Aluminium or metal coverred and filaman top wrapped completelly inside filaman resin matrix cylinder. | 
  
  
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    | CNG Tip IV | 
    Plastic (completelly composite) coverred and top wrapped completelly inside filaman resin matrix cylinder. | 
  
  
    | * Average Parameter for Standart CNG Pressure Vessels kg/l |