Packaging Series: vacuum packing, antirust packing, waterproof packing, shockproof packing, nitrogen-filled packing, foam filling packing etc.

"If the atmosphere filled up with nitrogen, mankind would not survive," she continued, as we inspected an extinct species of bird. "that does not mean that mankind deserved to die."

In case of emergency that can cause a fire, oil from the transformer goes to a separate green pipe shown in picture 11 and the transformer is filled with nitrogen.