C1925 I'm Not Brother Chun Why Do You Believe Me

When he suggested using the honeycomb structure to streamline the materials, he had already thought of the problem of the arrow's strength.

But the moment Chen Qiangsheng asked the question, he answered it all the more fluently.

Strength increased by 15% ~ 30%!

Chen Qiangsheng's eyes suddenly squinted when he heard that. He turned around to look at Qin Luo, revealing an inquiring expression