Chapter 497
Stencil, as the name suggests.The tennis isolation net made of steel is divided into an inner net and an outer net.

The density of the inner mesh is denser than that of the outer mesh, and the holes of the outer mesh are cross-spaced.

The steel wires of the outer net are relatively thin, but at the intersections of the steel wires, barbs protrude one by one.

These barbs point to the field through the gaps in the inner net. In order to ensure that athletes will not be injured if they hit it, the length of the barbs protruding from the inner net is 0.5 cm.

"I actually used 'table' and 'steel net'."

Liu suppressed the inexplicable excitement in his heart, and instantly flipped through the relevant data in his mind. This kind of steel mesh is made of VG-1060~62, which is the "V Gold No. 10" stainless steel material of Japan's "Takefu Special Steel".

It is "V gold", which is the best grade of steel. It contains about 1% carbon, 1.2% molybdenum and 1.5% cobalt. After heat treatment, it can reach the hardness of HRc60-62.

VG-10 has excellent processability, strong toughness and corrosion resistance, and is mostly used in high-quality Japanese-made knives.

The application of this kind of steel on the net will increase the compressive strength of the net by 99.66%, and the flexibility and expansion force will also increase by 89.36%, so that it can better ensure that the ball will not break the net and hurt the audience outside.

In addition, the barbs on the top can pierce the explosive tennis ball and reduce the impact force of the ball. Any tennis ball that falls on the steel net will be pierced and leak in an instant.

In this way, the attack power of tennis can be consumed to the greatest extent, which is equivalent to adding double-layer insurance to the audience.

However, this stencil has not been used for 30 years, because no one of that level has appeared in these 30 years.

The only time it was used was in the game against the Chinese team 30 years ago.
Liu Shushu's movements froze slightly, and the brows raised a little, he thought too far.
The sky has gradually darkened, half of it is gray, and the other half is stained with a little rosy color, and the crimson color permeates the sky, like the color of blood.

The dark colors permeated the stadium at this moment, overshadowing all the previous bright colors.

Stretching out his hand to hold Sakuraichi, Matsumoto's expression was cold, the eyes that were only exposed outside were a kind of pure and indescribable darkness, and the light seemed to sink into her pupils, showing a subtle beauty.

Unbelievably, the face with soft lines was hardened by the sharp expression of the wind.

Looking at Edogawa who was a head shorter than her in front of him, his eyes were dark.

This young girl has a pair of deep red eyes, like a deep pool, obviously transparent in color, but with a sharp edge, it seems to hear the sharp cries of swords.

Raising one's hand, raising one's foot, the willful movement seems to be casual, but there is no flaw.With an indifferent look, it seemed that the staff paid even a little bit of seriousness, and he didn't even want to take off his coat.This person hides unexpectedly deeply.

"What are you looking at?" The girl said indifferently, raised her head slightly, and there seemed to be a contemptuous arrogance in her eyebrows and eyes, "It should stop here." Her expression became a little loose and emotionless again, as if Look at the uninterested indifference of the stones on the roadside.

Matsumoto's expression gradually sank, such an expression and tone gave her the urge to destroy her.

"It's really cold." Buer smiled lightly, with an unknown pampering in his tone.It was the first time he saw Yingyi's expression like this, and I have to say, it was a really nice look, maybe this was her true self on the court.

But in comparison, Fuji prefers the look in Sakura's eyes when she looks at him. She can't understand him, and she can't kill him. It's really cute.Every time he saw it, he couldn't help bullying her, and then coaxed her before she got angry, and... well, I thought too much.

Withdrawing his wandering thoughts, Fuji took out his camera. It had been a long time since he had seen Sakura play. He wanted to take a picture and make it into a poster.

beep—

At this time, the referee who walked to the high chair in the auditorium blew his whistle, "Ice Emperor VS Qingxue, let's start now. In the first game, Ice Emperor will serve."

(End of this chapter)

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