```
The purpose of this modification was clearly to melt the metal rhenium, but whether it had any effect on the original manufacturing process was unknown.
The design scheme called for the addition of rhenium at 'three different places', with Li Rongmao joking that Shen Binghe's approach was to 'cast a wide net', which exactly captured Shen Binghe's thoughts. Knowing that his own skill level was insufficient, he decided to add rhenium at several positions, "Maybe it would be effective? By casting a wide net, there's bound to be a catch..."
The experimental process was still very complex.