Start with a blacksmith shop.

After hearing this, Li Zhenhua glanced at Liu Xiaodong and pointed at him with his hand.

"The Damask pattern requires the entire knife to be prepared before acid washing."

So we still need to sharpen the knife and also temper the blade.

Only after these two processes are completed can pickling be carried out.

After pickling, all you need to do is simply wipe the blade clean.

Guo Shugui and Liu Xiaodong listened attentively; what Li Zhenhua was saying was considered popular science knowledge.

Guo Shugui suddenly realized that pickling was to be done last; he had thought it was done in the middle.

"Then what are we waiting for? Hua Zi, hurry up and sharpen the knife!"

After sharpening and polishing, let's quickly proceed with acid pickling. I can't wait to see the finished product.

Hearing Guo Shugui's urging from the side and Liu Xiaodong's agreement, Li Zhenhua took the knife from the fat man's hand.

He walked towards the belt sander with the knife in his hand.

In fact, Li Zhenhua hadn't come up with a good method for sharpening the knife.

The blade of a typical dinner knife is actually serrated, which makes it easier to cut meat.

But for Li Zhenhua, there was simply no way he could grind out those saw teeth.

Since the serrations cannot be ground down, but the desired effect still needs to be achieved, the only option is to grind the knife as sharp as possible.

Fortunately, the knives made from these two types of stainless steel have a very high hardness after being quenched, which has a significant positive impact on whether the blade can be sharpened.

However, higher hardness means the abrasive belt for sharpening tools will wear out faster, which is the only downside.

Li Zhenhua arrived at the belt sander. He turned on the machine, and the sanding belt began to rotate.

The knife was fixed in the clamp that Li Zhenhua had just adjusted the angle of, and then the knife began to be sharpened on the sanding belt.

When the abrasive belt comes into contact with the knife, sparks fly everywhere. These sparks are generated by the iron filings and the high temperature of the abrasive stone.

Li Zhenhua quickly took the knife from him and examined the blade.

"Come here, Fatty."

Hearing Li Zhenhua calling him, Liu Xiaodong quickly came over and went to Li Zhenhua's side.

"What? What's up?"

Li Zhenhua did not answer Liu Xiaodong's question.

"Fatty, hurry up, pull your pants up!"

Come on, step on this bench with your feet.

Li Zhenhua continued to give instructions to Liu Xiaodong, who remained puzzled, and exposed his legs, placing them on the stool.

Originally, it was hidden in the pants, and Guo Shugui couldn't see it, but at this moment, he realized that this fat man actually had such a pair of natural wool pants.

Upon seeing the woolen pants, Li Zhenhua immediately grabbed a knife and squatted down in front of Liu Xiaodong's legs.

Holding a knife, Li Zhenhua squatted in front of him and smiled as he looked at Mao Tui.

This terrified Liu Xiaodong, who covered his hairy legs with his hands.

"Brother Hua, what do you want to do?"

"Dry!"

Liu Xiaodong felt terrible after hearing Li Zhenhua's reply.

"Make it clear what you want to do, or I'm going home. My mom even said she'd introduce me to a blind date!"

Startled, Liu Xiaodong quickly withdrew his leg and took several steps back.

"You idiot, Fatty, look how scared you are! You can't even lie properly. I should have recorded you, just to keep some evidence."

"When you said, 'Auntie will find you a blind date,' did you ever think about Wang Mei?"

Liu Xiaodong, who was initially retreating, immediately stopped retreating after hearing Li Zhenhua's words.

"Holy crap, don't get me killed! Don't come any closer..."

After Liu Xiaodong finished speaking, he closed his eyes, appearing completely at ease.

Just then, a weak voice came from the side; it was Guo Shugui speaking.

"Hua Zi, uh, there's a video recording, it's been recording the whole time."

"Great!" "Let me die!"

The two men's reactions were in stark contrast, with Liu Xiaodong showing particular fear.

Having been caught red-handed by Li Zhenhua, Liu Xiaodong stretched out his leg and dared not move again.

Only then did Li Zhenhua take the knife and begin cutting the fat man's thigh.

As the blade passed, leg hair fell to the ground.

The once thick hair on her legs now had a groove down the middle.

Those ravines were clearly carved out by Li Zhenhua with a knife.

Looking at his masterpiece, Li Zhenhua asked Liu Xiaodong with a smug expression.

"Brother, I didn't expect your hairy legs to be so white. How about it? My knife can cut a hair in two, right?"

"My wool pants, I never thought you would leave me like this. Don't worry, I will miss you."

Liu Xiaodong, facing the disfigured leg, showed no emotion; he was even joking around.

Guo Shugui was very pleased with the effect achieved by the knife.

I never expected that my suggestion would result in such a forged dinner knife.

This small detail directly improved the quality of their own residential properties.

"Ouch, this knife is really fast! Quick, quick, let me see! Fatty, you stand there, let me take a cut."

Seeing that the knife had achieved this effect, Guo Shugui quickly spoke up from the side.

Liu Xiaodong immediately ran away and asked Li Zhenhua to use the knife because he knew Li Zhenhua had something to rely on, but he didn't trust Guo Shugui.

Li Zhenhua watched the two men arguing and walked downstairs with the knife in his hand.

400、600、800、1500、2000，餐刀在这些目数的砂纸打磨下，刀身颜色变得亮起来。

The folded and forged patterns can still be faintly seen on the blade.

Li Zhenhua sharpened the first sample knife by hand. When it came to mass production, he started making a simple device to sharpen the knives.

The blade has been sharpened; the next step is the pickling process.

When Li Zhenhua came into the courtyard, Liu Xiaodong and Guo Shugui had stopped fighting. When they saw him come out, the knife in their hands had changed shape.

The two immediately came over.

"Is Hua Zi's knife ready for the next step? It's so shiny, it's almost like a mirror."

Guo Shugui looked at the knife from the side and sighed.

"I've ground it to 2000 mesh, and now that it's ready for mass production..."

600 grit is enough; this one was used as an experiment, so it was sharpened a bit more.

"You two wait here, I'll go get the hydrochloric acid. We can start acid rinsing in a bit, and the knife will look even better after that."

As he spoke, Li Zhenhua went into the warehouse and came out a moment later, carrying several mineral water bottles filled with a colorless and transparent solution.

Arriving at the prepared small plastic bucket, he took the several bottles of solution in his hand.

With the aid of the analytical eye, it was poured into the bucket according to the specified proportions.

Guo Shugui and Liu Xiaodong watched from the sidelines, occasionally discussing the game like two terrible chess players, praising each other in between.

After mixing the solution, Li Zhenhua used a wire to suspend the knife and placed it into the solution.

Li Zhenhua then plugged the knife into a 24V power source, and now all he had to do was wait.

The stainless steel knife reacted in the solution, which changed from its original colorless and transparent state to a rusty color with a hint of green.

Twenty minutes later, Li Zhenhua fished the knife out of the bucket.

A simple rinse with water and a wipe with a cloth.

The finished dinner knife was placed in front of the two of them, and beautiful patterns were visible on its surface.