Fujiwara nodded slightly, and walked to the box full of rackets, there were a total of eighteen rackets in it, the color was silver-gray, and at a glance you knew that they were tempered rackets for professional training, and they were also medium carbon steel. Pen, fun, pavilion www. biquge。 info Fujiwara narrowed his eyelids, reached out and took out a single-line paddle, just picked it up, the pupils, slightly tightened, so heavy!!

"Ahhh~ Why is it so heavy?" Xiangzi Aihara picked up the racket and waved it lightly to try the feel, and after feeling the weight on it, the corners of his mouth twitched, and he smacked the lollipop, "Aught ah~ It should be about 1000, right?" ”

"Well, it's 1050g." Risa Goto gently turned the racket, and the data related to it came to mind little by little, "The hardness of this steel is about HRC55 (HB538), and the σb (tensile strength) is 600~1100MPa.

The carbon content is between 0.25% ~ 0.60%, and there are a variety of products such as calming steel, semi-calming steel, and boiling steel. In addition to carbon, it can also contain a small amount of manganese of 0.70%~1.20%.

In addition, the higher the carbon, the higher the hardness, and conversely, the worse the toughness. It is perfect for making a strengthening racket. ”

It's just that there are really a lot of difficulties in practicing strength and technique at the same time.

Goto gently pushed his glasses, and the corners of his mouth were shallow, which was not a problem for her.

"Forehead ......." The corners of everyone's mouths twitched, and a drop of cold sweat slipped down their foreheads, they didn't understand what Goto said at all, the professionalism is too strong, is this the difference between the positive selection and the non-positive selection?

"It's different," Arai picked up the racket in his hand, then stopped and picked up the base to take a look, but found that there was no sign at all, and couldn't help but wonder, "How does this one of mine feel like 1500g?" ”

"This ...... of mine" Kitajima held the racket upside down, looked carefully at the frame and handle, and looked up at Sakuraichi, "It should be 5000g." ”

“5.....5000g！！！！！” Everyone couldn't help but widen their eyes, hey, Kitajima, you're actually a monster, right?

"Isn't it different?" Yanagi also tried his racket, then turned his head to look at Mai Sang Yu on the side, and said, "Sang Yu, show me yours." ”

"Uh, give." Sang Yu handed her the racket, licked the edge of his lips, and said, "It seems to be 800, I'm not sure, I always feel a little off." ”

"Ale, mine is 765," Rina Aihara on the side also tried the racket, felt the weight and looked at it again, and finally said, "Hey, the head is heavier." ”

"Well, I see, I see." Liu Sheng returned the racket in his hand to Sang Yu, and said lightly: "The minister should make the racket according to everyone's strengths."

The strength type trains the technique by putting more weight on it, and the technical type trains strength by reducing the weight a little so as not to put a strain on the arm. It's a great training method to calibrate your speed, strength, and agility at the same time, right, Goto. ”

"Ah, it's really good, but ......" Goto's eyelids drooped slightly, and his gaze fell on Fujiwara, who was not far away, and a faint meaningful arc blurred at the corner of his mouth, really curious, how much would Fujiwara's be?

Looking at the several positive selections that adapted to the racket, Sakuraichi didn't say anything, just stood quietly.

The racket is indeed a professional training racket formulated by a designated object as Yagyu and Goto said, and the balance point of the racket is not the same, and the position of the 9pt is naturally different, the balance point is related to the weight of the racket, and the heavy head is suitable for long rackets, that is, the bottom line volley type players are exclusive to such a type.

Generally speaking, the head is suitable for the front of the net volley, and the light head slap is suitable for the front of the net volley type like Kishimaru and Aihara Shoko, and the other is also suitable for people with flexible hands, for example, Echizen, and so on.

As for the weight of the racket, generally speaking, the range of application (in reality) for young men is 320-330g, the range of rackets between 300-320g for middle-aged and elderly women, and the range of application for young women is 280-300g.

But for Fujiwara, the improvement of strength, speed, technique and their own mental power, such ordinary rackets can no longer meet their needs, what they need is a racket that can allow them to improve or even break through themselves.

Taking a shallow breath, Sakura tucked his eyelids, "Hou Beijun put on a load." ”

"Hey—"

Hou Beijun responded, quickly walked to the box where the weight was placed, took two pairs of weights each, and buckled his hands and feet respectively. Hou Beijun has a total of 20 people, and they are the outstanding members of the department who stood out in the first two months of training, and the future selection will be selected from among them, that is to say, after they retired from the department in August, it will be this group of people who will lead the women's tennis of Qingxue.

These include: Tomosa Aizawa (2nd Grade), Sawako Aoki (2nd Grade), Ryo Osakawa (2nd Grade), Kana Nishida, Naohaku Akitsu, Yuko Kumagi, Yukino Yoshida, Miyuki Nakajima, Ritsuko Ito, Yuki Igarashi, Sakurano Ryuzaki (2nd Grade......

However, for the current twenty people, Sakuraichi is always not very satisfied, compared to the strength, they can't even catch the ten balls of Rina Aihara, although the possibility of growth will be great, but at present, it seems that after August, these people will lead the future Qingxue, Sakuraichi really can't let go.

It seems that fresh blood must be injected, at least, three to five members who can compare with or even surpass Sang Yu and others, only in this way can Qingxue's undefeated status be guaranteed, after all, she can't stay in the middle of Qingxue all the time.

Because, her goal ......

It's the world......

Smack-

Bang –

"Knock Knock Knock!! Come on, Goto-" Mieko Arai clenched the racket in her hand with enthusiasm, her burgundy eyes were full of excited flames, and her tone was extremely arrogant: "I will definitely beat you today, Come, on!! ”

"Hey, why are Arai-senpai so excited?"

"Who knows." The girl pointed to Field B, "Look over there." ”

Bang –

"Yo ho ~ na, I hit the ball back with mulberry feathers."

Sang Yu raised his eyebrows, "Hey, Xiangzi, don't be too happy, look at my ...... C. Corridor and !!! ”

"Huh!!!" Xiangzi dodged, only to hear a crisp sound, the tennis ball instantly went around the sideline to her backcourt and then smashed out, looking at the ball, Xiangzi glared at Sang Yu: "Ahhh How can you play such a long ball! ”

"Hey~ Who said you can't fight."

"It's a good choice, you can play with that kind of racket."

......

Goto's gaze fell on his hands, his eyes narrowed slightly, well, it won't last long, and it will continue like this......

Smack-

"Knock! Watch My J Smash !!! ”

Here it comes!!

Goto's pupils tightened, and the ball that was getting closer and closer was reflected on the transparent lenses, Goto's blue-purple eyes suddenly condensed, and he instantly bent down and squatted, one leg bent, one leg straightened, his right hand was on the ground, the corners of his mouth were hooked, and his easy-going and elegant smile was dyed with undetectable arrogance and confidence, and in an instant, four white translucent gases gradually attacked, lingering on Goto's left hand to form a faint layer of gas.

"That pose!"

Bang –

Whoop -

"Ah, it appeared, and it was the horn of the pirate of Goto's senior!!!"

“KUSO！ I was killed by this trick again! ”

"Well," Goto gently pushed the glasses on the bridge of his nose, and clasped the double line on the racket with his right hand, "If you want to beat me, you might as well practice for a few more decades." ”

Goto ......

Sakuraichi's dark red eyes condensed slightly, forming a thin red line under the cover of the brim of his hat, and his eyes fell on Goto's wrist across the eyelids, and when he saw the reddish color on it, his eyebrows frowned slightly, and it seemed that Goto's hands had reached their limit.