... flat barbecue, hotel and family chafing dish gas . ISO-BUTANE gas cylinder contains High-purity gas 230g ISO-BUTANE gasProducts No.ELK-BQ02Especially ... flat barbecue, hotel and family chafing dish gas . ISO-BUTANE gas cylinder contains High-purity gas 230g , It is convenient to carry, ... stability, is blue .use method:1, removed the cover gas above the plastic cover to protect. 2, trachea flats will ...