chapter 401 Super steel is this

Then William Lin mobilized his spiritual power and punched the steel support of the human stake.
Buzz~
Suddenly, a trembling sound was heard in the silent basement. Su Mu and Li Jianguo hurried forward to observe the human stake.
After a while, Li Jianguo burst into laughter.
"Lin, don't be so unconvinced. This is the strongest steel in the country, even in the world!" M..
William Lin also showed a trace of embarrassment on his face.
After pondering for a moment,...