Chapter 674

Han Zhen's eyes skimmed over the nameless sword: "garbage!"

Lin Chengyu's face suddenly changed. He used to be a treasure expert. He was famous in China in his early years, and he has been in the sword for many years. He knows a lot about many things. How can he accept being accused by such a young and nameless man as Han Zhen? He is about to change his color. But then he sneered and said, "go on!"

Lin Chengyu is ready to let Han Zhen make a fool of himself in public.

Han Zhen looks at Lin Chengyu. Lin Chengyu's plan is clear to Han Zhen. However, Han Zhen didn't care at all, "the blade is long and narrow, with blood groove, and blood thread on the blade. Looking at the general material, but in fact it is extremely sharp! "

"The blood thread is not a special material added to the blade, but the whole blade is made of blood grain steel!"

"Blood grain steel?" Lin Chengyu chewed the name for a while, "don't think that if you invent a name, you can make sense of it!"

He Ying was also startled by Lin Chengyu's words. She was worried that Han Zhen would be exposed.

"Blood grain steel, refined and formed naturally, has the effect of chopping, so this blade is extremely sharp!" Han Zhen had seen blood grain steel in his previous life. This kind of material is very common, and it is generally used by practitioners who are at the beginning of refining gas.

"Moreover, this kind of blood grain steel has a characteristic that it can only be refined once, but if you want to re smelt it for a second time, it has no effect at all! So your lab can't work out any results at all! " Han Zhen looks at Lin Chengyu with a smile on his face.

Lin Chengyu's face suddenly changed.

This knife is so powerful that naturally some research departments want to study it deeply. However, the material they extracted from the blade is no different from other materials just now. Similarly, when researchers use the material extracted from the blade to refine weapons, they will not have the effect of cutting everything.

That's what killed the researchers.

However, Lin Chengyu refused to believe that what Han Zhen said was the true situation. "You make it up at will, and no one else can verify it. Naturally, you can make it up at will!"

Han Zhen said with a smile, "well, the sharpness of this knife has been declining. Am I making it up?"

Lin Chengyu finally changed her face. "How can you possibly know this?"

"And I also know that in less than five years, this knife will never have the effect of cutting!" Han Zhen said coldly.

Lin Chengyu's cold sweat finally came down.

He looked at Han Zhen as if he had seen a ghost and could not speak.

These things, in the whole sword nobody knows, but in front of Han Zhen is how to know?

Lin Chengyu's eyebrows are hanging.

"No! You must have a channel to know about this knife, right? " Lin Chengyu thought of a reasonable explanation and looked happy.

Han Zhen didn't explain. Instead, he said, "this dark wood sword is made by canghemu. Although the effect is good, it has a fatal weakness.... "

Han Zhen slowly asked: "do you know where its Achilles' heel is?"

Lin Chengyu's heart moved, "what's the weakness?"

"This Canghe wood is so strong that it will penetrate into the human body, and the human body will be affected by lignification!" Han Zhen said.

"What is lignification?" He Ying is full of doubts.