Double-pass door, opening the cigarette and alcohol to exchange for the photolithographic machine

Lin Chen had inherited a factory and obtained a double door that led to a thousand years later.

The hundred-dollar bills he took out were treated as ancient notes, and the clothes he wore were treated as rich people.

He actually used cigarettes and white wine to easily exchange for the chip production line, including the photolithographic machine.

Lin Chen realized that although the technology in the future was advanced, natural food and clothing were in short supply.

Therefore, he exchanged modern tea leaves, meat, vegetables, and so on for robots, aircraft, and quantum communication...

Lin Chen knew that he was going to strike it rich.