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

人妻丰满熟妇AV无码区动漫| xxxxxl日本17上线| 亚洲精品乱码久久久久久蜜桃不卡| 国产羞羞视频在线观看播放| 女女同性女同色情在线电影| 妺妺坐在我腿上勃起弄了应用| 欧美a一片xxxx片与善交| 啪啪动图边摸边吃奶做爽动态| 日本a片无码中文字幕电影| 老师好爽要尿了潮喷了视频高潮| 成熟丰满熟妇高潮xxxxx视频| 农村熟妇高潮精品a片| 中文字幕久久久人妻无码 | 两个人看的WWW高清视频中文| 学长早晨含巨龙起床h男男| 美女裸体a级毛片| 日本人妻伦在线中文字幕| 欧美成人无码大尺度电影苦月亮| 风流老熟女一区二区三区| 蜜桃成人无码av在线观看一电影| 国产精品免费一区二区三区四区| 暗呦交小u女国产精品视频| 无码av中文一区二区三区桃花岛| 五个丝袜女警榨精嗯啊哦哦| FREEXXXX性中囯HD性| av在线播放| 亚洲综合无码一区二区三区| 与子敌伦刺激对白亂輪亂性| 年轻教师6电影完整版| 啊灬啊灬啊灬快灬高潮了| gogo全球大胆高清人体444| 久久人妻无码精品一区二区三区| 少妇撒尿w搡bbb搡wbbb搡 | 久久国产情侣露脸精品| 精品久久久久久国产| 梦精爱2| 尺度最大的色情禁片| 亚洲人成在线观看| 久久久欧美国产精品人妻噜噜| 亚洲av无码99久久久国精| 日本成本人片无码免费视频网站|