My system is not decent

When buying crystal glass tableware, you can distinguish glass, lead-containing crystal glass, and lead-free crystal glass by sound, feel, and appearance.

How to identify it is actually very simple, just listen to the sound.

Lightly tapping or flicking the container with your fingers, the crystal glass container can make a light and crisp metal sound, and rippling a beautiful lingering sound in the air, while the ordinary glass container only has a dull "click, click" sound.

It is because of learning how to identify crystal glass products that Chen Wenzhe comprehended the technique of identification.

And after learning the identification technique, after you draw a conclusion, the system can judge whether it is right or wrong.

For example, now that Chen Wenzhe confirms that the champagne glass in his hand is a lead-free crystal glass, the system immediately confirms: the identification is correct!

However, this time he appraised the crystal champagne glass, but there was no feedback.

Chen Wenzhe knew that this time was not a real appraisal.

If you want to really learn the identification technique, you need to formally identify an item, but there is no rush.

Chen Wenzhe was very excited to get the Appraisal Technique by accident, but what he valued most was the manufacturing process.

It is not too troublesome to make crystal glass, mainly by adding various metals, such as lead.

Because the color, texture, and gloss of ordinary glass are not ideal, adding lead to the glass can increase the refractive index of the glass, which looks like crystal, so it is called crystal glass.

Some ornaments of various shapes, crystal glasses, crystal lamps, etc. are made of leaded glass.

Things that contain lead, modern people know that they should not be used casually, because lead is a heavy metal, and it will cause lead poisoning after entering the human body.

Therefore, there are certain standards for making leaded crystal cups.

According to EU standards, crystal glasses are divided into three types: lead-free, medium-lead and high-lead.

The lead oxide content of the medium lead glass reaches 24%; the lead oxide content of the high lead glass reaches 36%.

If the crystal glass container is produced in accordance with EU standards, no matter what kind of product it contains, there are strict international regulations on how much lead it contains, and it is safe for the human body.

However, due to the lack of standards in our country, it cannot be ruled out that the production of individual manufacturers is random and the product quality is difficult to guarantee.

In this way, it is difficult to sell domestically produced crystal cups at a high price.

Especially for some high-consumption groups, they only buy expensive ones as long as they are right.

This is also the reason why no one wants many things abroad, and there are products in China, even with better quality, because they don't trust them.

In fact, no one else is to blame for this, it is entirely done by the Chinese themselves.

Not only manufacturers do it, but consumers do it too.

It is the result of joint efforts, which has caused Chinese people to go abroad to buy foreign Chinese products.

A lot of people laugh at these people, thinking they spend a lot of money, take their pants off and fart.

In fact, many people do not know that the products of many domestic factories have double standards, and the quality standards for exports are different from those for domestic sales.

It makes sense for people to go abroad to buy domestically exported products!

Shaking his head, he took back his divergent thoughts. This time, he also obtained a lot of secret recipes, which can be turned into wealth in the future.

Chen Wenzhe tried his best to digest the information he got this time, mainly the various manufacturing techniques of the crystal cup.

Crystal cup is a kind of glass cup, the most important component is silicon dioxide, but lead, barium, zinc, titanium and other substances are introduced into it.

If lead is introduced, it is lead crystal.

The introduction of barium, zinc, titanium and other substances is lead-free crystal.

The percentages of various substances in it completely fell into Chen Wenzhe's eyes. What he wanted was actually the formula accumulated from these experiences.

As for the production process of the crystal cup, it is really not difficult for Chen Wenzhe, it can't be more difficult than drawing embryos in porcelain making, right?

Of course, making glass crafts is somewhat different from making porcelain, but the difference is not big.

The body of the crystal cup is made of high-grade crystal glass, which is carefully processed and fired with superb skills.

Generally, a high-temperature firing process of 640c is adopted to reach the critical point of crystal glass melting. Such works are transparent, pure and non-toxic.

During this process, the annealing process is adopted at the same time to ensure that the cup body can withstand the instantaneous change of cold and heat, explosion-proof and crack-proof, no tail vacuum, and has the characteristics of high transparency, strong crystal feeling, and wear resistance.

The crystal glass products fired in this way are crystal clear, elegant and generous.

And this is only the outside, the inside is even more beautiful!

The high-grade crystal glass is a double-layer glass structure, which has a certain effect of cold and heat preservation;

The mouth of the cup is also smoothed by a special process, and the taste is comfortable when drinking;

It is more convenient to use, more reasonable in design, and more humanized.

Compared with the ancient teacups, this kind of product has been promoted by many merchants and is very popular among modern young people.

These little advantages, combined, really want to impact traditional porcelain.

No, it has already had a great impact on the domestic porcelain manufacturing industry.

Since modern times, domestic porcelain exports have actually lost any advantage at all.

The modern porcelain manufacturing industry not only needs to involve, but also competes with many large foreign manufacturers, such as Neon, Germany, France and other countries, which are now big porcelain manufacturing countries.

"Teach the barbarians to control the barbarians! If you want to see the advantages of others, you can't be complacent!"

Chen Wenzhe was playing with the crystal cup in his hand, but he didn't expect that it was just a whim that allowed him to see a huge market.

This is typical, monks can touch it, why can't Taoists touch it?

"Ding dong!"

While Chen Wenzhe was digesting the craft of making the crystal cup, the door of the guest room rang.

Putting down the crystal cup, Chen Wenzhe planned to go to the cruise ship restaurant when he was free, and touch all the high-end crystal products inside.

Well, thinking of touching, Chen Wenzhe thought of the second inheritance task.

Isn't the task this time just to touch Jing Yunzhong?

It seems that the most essential point of all inheritance is to touch!

"I always feel that the system is a bit dishonest, it's definitely not that I'm dishonest!"

Mumbling in his mouth, Chen Wenzhe opened the door.

Zheng Yu didn't enter the door, but stood outside the door and said, "Aren't you hungry?"

"Huh? Look at what you said, as if you know I haven't eaten?"

Zheng Yu rolled his eyes directly: "You have slept all day, I am not as good as you."

"It's been a whole day? It's really inconvenient without a mobile phone!"

Chen Wenzhe felt a little emotional, time passed so fast, he didn't even have time to feel hungry, it's only been one day?

"You can take care of yourself? Now that you are so rich, you don't know how to buy a watch? At least you should have a waterproof watch!" Zheng Yu said a little speechlessly.

Chen Wenzhe was taken aback, it turns out that he can check the time without relying on his mobile phone?

His family is poor, so he really doesn't know anything about green water ghosts!