C3393 Graphene Parachute

"Cough cough, Professor Qin, don't misunderstand me. I was just casually asking. I didn't mean anything else. If it's not convenient to say it, then forget it." Jiang Tianhua quickly explained.

Was it not convenient to say it?

Actually, it was not.

After all, this was not a good secret technology. Everyone would know when the manned space test flight was launched.

"Actually, it's not a secret