日韩一级视频在线观看播放,日本一在线中文字幕hey20dvd,日产韩国精品免费,日韩a操操操综合

首页链接
17718520076
CN ? EN
 Search

News Center

Learn more about Tecona news and industry news

  • Company Dynamics
  • Technical Articles
  • Product information
  • Exhibition information
  • What is the difference between surface roughness and surface finish?

    Surfacefinishandsurfaceroughnessarethesameconcept,andsurfacefinishisanothertermforsurfaceroughness.Surfacefinishisproposedaccordingtothehumanvisualpointofview,w...

    View details  

    What are the differences between MJ thread and normal thread?

    MJ thread is a kind of thread with high fatigue strength. It is called aerospace thread by the International Organization for Standardization. It is mainly used...

    View details  

    Why do we need to measure surface roughness?

    Surface roughness refers to the roughness of the machined surface with small spacing and small peaks and valleys. The distance between the two peaks or troughs ...

    View details  

    How is surface roughness formed?

    Surface roughness has an important influence on the service life and reliability of mechanical products....

    View details  
  • Wechat public account

  • WeChat consulting

  • Consulting hotline

    17718520076 17718570076

    Address:211, Floor 2, No. 19, Madian East Road, Haidian District, Beijing

    Mailbox:office@tkntech.com.cn

    Phone
    17718520076 17718570076
    WeChat
    Online
    TOP
    巢湖市| 洛南县| 临澧县| 平陆县| 巩留县| 融水| 东兰县| 汉阴县| 柳州市| 兴化市| 松阳县| 即墨市| 吴川市| 曲阜市| 桐乡市| 齐齐哈尔市| 梅河口市| 平邑县| 光泽县| 巩留县| 青海省| 商南县| 贡嘎县| 克拉玛依市| 隆回县| 钦州市| 土默特左旗| 吴忠市| 金坛市| 福泉市| 神农架林区| 小金县| 西安市| 洮南市| 惠东县| 嘉义市| 金山区| 景东| 保定市| 绩溪县| 商都县|