Looking back at the tank shell in his hand, Han Feng's brain was calculating rapidly...

One cartridge case weighs 10kg... Ten cartridge cases are 100kg... In other words, there is one-tenth of a ton of copper under your feet!!

Coincidentally, building a base car requires 600 tons of copper!

"Luna, what is the material of the bullet casings shot out by the Red Police soldiers?" Han Feng asked, drawing inferences from one example.

"Report to the Korean team, the Red Alert soldiers fired the bullets, and the shells that came out were also made of copper."

"What about the Gatling bullet casings that the Terminator Ghost exited?!"

"It's also made of copper."

Without hesitation, Han Feng continued to ask: "If these bullet casings are melted into copper, can they be used to build base vehicles?"

"It's okay to report to the Korean team."

"..." In an instant, Han Feng felt like he had lost hundreds of millions!!!

Taking a deep breath, Han Feng continued to ask: "What is the weight of the bullet shells of the Red Police soldiers?"

"Reporting to the Korean team, the weight of each cartridge case of machine guns and Gatling bullets is about 4.5 grams."

After Luna finished speaking, Han Feng closed his eyes and calculated... The Terminator Ghost fired a thousand bullets in total the day before yesterday, and the weight of the shells was 4.5kg...
Chapter completed!