The underground laboratory, located 80 meters underground, has only one passage for vehicular traffic.

The rest are internal elevators, which have a backup power generation system to prevent the invasion of enemies behind the power outage, and the main frame made of terrifying special cement pouring makes the walls reach a terrifying three meters, which can make people desperate, and the three-body ventilation system, and the air purification system, so that the inside and outside of the laboratory always maintain a good air circulation.

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"When I Wake Up, Global Prices Have Plummeted Ten Thousand Times" Chapter 220 Plasma Technology is in the middle of the hand, please wait a moment,

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