C658 Do You Want to Borrow Money from Hong Liu or Not?

Whether it was intentional or not, Qin Guan was infiltrating this point of view. It was the issue of the spare parts of the weapon.

No matter how majestic and majestic a fighter aircraft was, every time it came back from the sky, There were some parts that were damaged, and each part had a lifespan. When it reached the lifespan limit, it would need to be replaced