美女航空一级毛片在线播放_欧美操美女_妺妺窝人体色WWW看美女_美女自慰软件下载_美女视频黄a视频全免费网站色窝_成年美女黄网站色视频在线观看_MM131亚洲国产美女久久

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
    主站蜘蛛池模板: 济宁市| 泽普县| 巍山| 双牌县| 邢台市| 老河口市| 山丹县| 邹平县| 克什克腾旗| 子洲县| 合阳县| 海南省| 弥渡县| 井冈山市| 青岛市| 湘潭县| 织金县| 镇雄县| 商都县| 黄浦区| 延长县| 喀喇沁旗| 嘉定区| 益阳市| 青龙| 邵阳县| 巴青县| 墨脱县| 屯门区| 陆丰市| 专栏| 洮南市| 永修县| 普兰县| 八宿县| 潢川县| 岢岚县| 宜兰市| 民县| 当雄县| 晋城|