Cylinder Colors: Everyone has seen the red colored cylinder used in the kitchen of the house. Everyone knows that LPG gas i.e. Liquefied Petroleum Gas is filled in red colored cylinders. But apart from the kitchen cylinder, there are many other colored cylinders as well. Apart from the red cylinder, there is also a blue, black and white cylinder. Now the question becomes that which gases are filled in different colored cylinders? The question also arises that why these cylinders are divided into so many colours? They could have been…
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