"Old Qing, what's going on?" Wang Wei couldn't hold back his curiosity and asked.

You know, if the general patina does not have this astringency.

"I don't know if you've ever heard of a secret technique called 'Rust Recipe'?" Qingheshan asked with a smile as he stroked his beard.

"Rust side?"

He Lin pondered for a moment and said, "My dad mentioned to me before that in order to protect the treasures, this kind of ancients would have a method of coating the outside of the treasures with a rust layer, but this kind of method has been passed down to the present very rarely, and it seems that only a few wild history records it. ”

"Yes, the 'rust square' is exactly the same as what your dad said. ”

Qingheshan nodded slightly, and then said: "The 'Rust Fang' is that the ancients used a unique method to coat the surface of the metal artifacts with a layer of rust in order to protect some particularly precious metal artifacts during the war, so that they can not only protect the artifacts from damage, but also conceal the face of the treasure itself, and it will not be eye-catching when carrying." ”

"Qing Lao, do you mean that this giant sword uses the 'Rust Coating Formula' and other secret methods for doing the same?" asked Wang Wei's eyes.

If that's the case, then it means that this bronze greatsword is really a treasure!

Qingheshan smiled noncommittally and didn't say much.

"Qing Lao, do you know what method can be used to remove the patina of this 'rust coating square'?" He Lin only threw out the true purpose of coming to Qinghe Mountain today at this time.

Wang Wei may not be sure if the giant sword contains treasures, but He Lin has already determined that there are treasures in it through his abilities.

The purpose of his coming to Qinghe Mountain today is not only to appreciate treasures and affirm his ideas, but also to find a way to remove rust!

Qingheshan took a sip of the tea on the coffee table unhurriedly, then looked at He Lin and said, "Xiao He, are you really lucky, really lucky?"

He Lin scratched his head and smiled, everything was silent.

Qingheshan shook his head with a smile, and then shouted in the direction of the door of the study: "Zhuangzi!"

At this time, the man with the same head who had led the way for He Lin Wang Wei walked in: "Old Qing, do you have any orders?"

The inch-headed man called 'Zhuangzi', whose full name is Zhang Zhuang, is the driver and personal bodyguard of Qinghe Mountain.

"Take this bronze sword and follow me to the basement. Qingheshan flicked his sleeves and got up.

"Yes!"

Zhang Zhuang nodded slightly, and immediately lifted the bronze ancient sword on the table with one hand, and followed closely.

"Damn, he's a practitioner. Wang Wei muttered in He Lin's ear: "Brother He, look, you can easily lift this bronze ancient sword with one hand, this sword is at least fifty catties, right?"

He Lin's eyes also showed a look of surprise, he felt that it was difficult for him to carry this ancient sword himself, let alone lift it with one hand.

I have to say that a big guy like Qingheshan is indeed Crouching Tiger, Hidden Dragon!

"Xiao He, Xiao Wang, why are you two still stunned?"

The young man at the front greeted him: "Don't hurry up and keep up!"

"Oh, old man, it's coming!"

He Lin answered, and hurriedly followed Wang Wei.

Qingheshan led the way in front, and the four of them walked through a circular descending staircase to a basement.

The basement is equipped with voice-activated lights, and as soon as footsteps sound, a soft yellow light comes on in the hallway.

"There is such a big basement in the villa, which is also very high-end!"

Wang Wei looked at the facilities in the basement, which were as small as radiant lamp pens, miniature tweezers, and as large as computers, electronics, and precision instruments, which was simply a small archaeological research base for treasure appreciation!

"Do rich people like to play like this?"

He Lin couldn't help but sigh in his mind: "Sure enough, poverty limits my imagination!"

"Come on. ”

Qingheshan stood still in front of him, and pointed to the pale green liquid in the square glass pool in front of him with one hand: "Zhuangzi, take out the ancient sword and soak it." ”

Without saying a word, Zhuangzi took out the bronze ancient sword from its scabbard and threw it into the glass pool.

"Elder Qing, what kind of liquid is this?" He Lin asked in surprise.

"Hehe, this is a chemical reagent containing 10% ammonia, which can be used to remove the rust of the 'rust coating side'. Qingheshan replied with a smile: "Ammonia can remove rust, but the concentration must be just right, too low can not remove rust, too high will hurt the utensils inside, this 10% concentration is just right." ”

"I see, that's ......," He Lin suddenly realized.

This antique industry is really inseparable from science majors such as physical chemistry, and if you don't know a little physical and chemical knowledge, you are really embarrassed to say that you are engaged in antiques.

At this moment, the ancient sword also gradually reacted in the immersion of 10% concentration of ammonia, first small bubbles appeared on the blade, and as there were more and more small bubbles, the body size of the ancient sword seemed to have been soaked and expanded a lot!

A bubble broke free from the blade and burst into the water.

Immediately after that, countless small bubbles broke free from the knife one after another, and then became smaller and larger, and finally burst on the surface of the water, and for a while, the whole pool of water seemed to be boiling, and the bubbles kept bubbling!

As the bubbles separate, the rust on the knife body also shows signs of peeling.

After about ten minutes, the old man ordered: "Okay, Zhuangzi, shake the sword and take it out!"

Zhang Zhuang nodded, put on leather gloves and reached into the ammonia, grabbed the hilt of the sword, and shook it left and right with a little force!

Whew——!

The rust on the ancient sword fell off like confetti, and the body was a little smaller, and the bright sword body suddenly appeared in front of everyone!

"your ——!"

Wang Wei was so shocked that he couldn't help but spit out the fragrance, and shouted with excitement: "Yes, yes, there is really a treasure in Brother He!"

Qingheshan and He Lin were also hot-eyed, but they didn't say a word at the moment.

Uproar——!

After shaking off the rust, Zhang Zhuang took out the bronze ancient sword at once, and then wiped the sword body dry with a dry handkerchief, and then put the bronze ancient sword on the experimental table.

The three of Qingheshan hurriedly stepped forward to take a closer look, after removing the patina of the sword body, the sword is more than 70 centimeters long, about 6 centimeters wide, with a round head, two hoops on the cylindrical stem of the sword handle, and turquoise is embedded in the sword grid, and it is decorated with a simplified animal face pattern, and the sword is sharp!

Qingheshan saw the sword body shining with cold light, and only spit out two words in his mouth: "Good sword!"

He took a piece of white paper, gently put it on the blade of the sword and blew it, and the white paper was split in two!

"Hair breaking!"

Wang Wei was even more excited than he had picked up the treasure at the moment, and shouted in a low voice: "Artifact, Brother He, this is really an artifact!"

"Hey, there's an inscription on the sword. He Lin's eyes were sharp, and he suddenly noticed that there were two lines of small characters tattooed on the vicinity of the sword.

Qingheshan also excitedly put on reading glasses at this time to take a closer look, and there were indeed two lines of small characters on both sides of the sword spine at the lower end of the sword body, symmetrical left and right.