public GasMaterial(GasTypes _Type)
 {
     GasType = _Type;
     Name    = Name = GasType.ToString();;
 }
 public GasMaterial(GasTypes _Type)
 {
     GasType = _Type;
     Name = Name = GasType.ToString(); ;
 }
 public CSGasMaterial(GasTypes _Type, double thickness)
 {
     GasType1  = _Type;
     Name      = Name = GasType1.ToString() + "_" + thickness;
     Thickness = thickness;
 }