小荡货奶真大水多好紧视频,欧美乱大交xxxxx潮喷,强壮的公次次弄得我高潮a片日本,宝贝腿开大点我添添公交车

全國(guó)服務(wù)咨詢(xún)熱線(xiàn):

18668966307

當(dāng)前位置:首頁(yè)  >  技術(shù)文章  >  The table tennis wave hardness tester-產(chǎn)品推薦

The table tennis wave hardness tester-產(chǎn)品推薦

更新時(shí)間:2024-10-11      點(diǎn)擊次數(shù):229

The table tennis wave hardness tester is suitable for testing the Vickers hardness of various table tennis balls. This machine is also known as a Rockwell hardness tester, table tennis ball Rockwell hardness tester, table tennis ball hardness tester, wave hardness tester, and wave hardness tester

Table tennis is a sport that combines skill and speed. Players need to have accurate control over the quality of the ball, and hardness is one of the key indicators. The table tennis hardness tester can objectively test the hardness characteristics of the ball, allowing players to better grasp the hardness of the ball; Balls with different hardness have different characteristics, some are more suitable for quick attacks, while others are more suitable for stable power. So as to choose the ball that suits oneself and improve the level of the game.

The table tennis ball hardness tester meets the standard:

Meet the requirements of relevant items in the GB/T 20045-2005 standard

Measurement principle of table tennis ball hardness tester:

During the test, place the table tennis ball on the testing platform, apply a fixed 50N load, automatically read the hardness A within 15 seconds, and return the indenter to its original position; Rotate the ball smoothly 180 °, test the hardness B using the same method, then rotate it 90 degrees to test the hardness C at the joint, and then calculate the hardness difference between the two readings of hardness A and hardness B

Functional characteristics of table tennis wave hardness tester:

1. The touch screen display displays real-time force values, displacement deformations, and automatically saves data; The display interface can display the test curve in real time; Test real-time parameters such as speed and deformation.

2. Using a high-precision, fully digital speed control system and precision reducer, the precision screw pair is driven for testing, achieving a wide range of adjustment of the test speed and smooth operation.

3. Adopting high-precision sensors and professional measurement and control software, with high testing accuracy, wide testing range, and simple operation.

4. Equipped with a standard micro printer, it can print results at any time and collect multiple test results

5. At the end of the experimental process, provide the measurement results of the hardness value. The process is time-saving and labor-saving, reducing the interference of subjective factors and effectively improving the reliability of testing.

Technical parameters of table tennis wave hardness tester:

Measurement range: 0-100 N

Resolution: 0.1N

Accuracy: ± 0.5%

Test speed: (1-300) mm/min adjustable

Sample holder: copper ball holder with a diameter of 30 ± 0.5mm

Load capacity: 50N ± 0.5N

Test displacement accuracy: 0.01mm

Upper pressure plate: 100mm pressure head

Parallel upper and lower pressure plates:<0.025mm

Lower pressure plate diameter: 100mm

Test space: 100mm vertically,

External dimensions: 430 x 350 x 710mm

Mass: 45kg

Power supply: 220V, 50Hz

Table tennis wave hardness tester configuration

Standard configuration: host, testing aids, micro printer.



全國(guó)統(tǒng)一服務(wù)電話(huà)

0531-85809007

電子郵箱:2289528882@qq.com

公司地址:山東濟(jì)南市槐蔭區(qū)新沙工業(yè)園三街17號(hào)

業(yè)務(wù)咨詢(xún)微信

把女邻居弄到潮喷的性经历| 男男调教惩罚做到哭play| 亚洲av无码a片在线观看蜜桃| 国产精品成人69xxx| 被强迫各种姿势侵犯n| 精品无码久久久久久尤物| 随时随地都能干的学校教师| 欧美性xxxxx极品少妇| 丰满大爆乳波霸奶| 色综合久久88色综合天天| 国语精彩对白在线视频| 国产69精品久久久久| 糖心VLOG肉丝库水柚子猫| 国产爆乳无码一区二区麻豆| chinese猛1打桩浪小辉| fc2成年免费共享视频| 国产98在线 | 欧美| 最近中文字幕高清字幕mv| 羞羞漫画_成人漫画_成人专用| 国产精品无码AV片在线观看播| b站禁止转播404入口| 特级做a爰片毛片免费69| 免费国产黄网站在线观看视频| 亚洲国产另类久久久精品黑人| 69xxxxxxxxx68| 亚洲av成人精品网站在线播放| 久久久97精品国产一区蜜桃 | 国产视频一区二区| 青娱乐极品盛宴| 做爰高潮全过程免费的小黄文| 国产三级农村妇女系列| 精品国产乱码久久久久久口爆 | 国产精品自产拍高潮在线观看| 亚洲一区二区观看播放| 公主恋人ova| 里番本子纯肉侵犯肉全彩无码| 成品网站w灬源码三叶草| 丁香花在线观看视频在线| 在办公室伦流澡到高潮h | 掉入男人世界的女人阅读| 1000部啪啪未满十八勿入免费|