婷婷色爱区综合五月激情韩国,欧洲熟妇色XXXX欧美老妇多毛图片,日欧精品卡2卡3卡4卡,亚洲国产精品国语在线,狠狠色噜噜狠狠狠888777米奇,成人网站国产在线视频内射视频,野花免费社区在线,日文字体乱码一二三四最新,亚洲国产成人久久精品软件,1000部拍拍拍18勿入免费视频

<s id="aug6u"><kbd id="aug6u"></kbd></s>
  • <abbr id="aug6u"><code id="aug6u"></code></abbr><pre id="aug6u"><table id="aug6u"></table></pre>
    
    
  • <center id="aug6u"></center><cite id="aug6u"></cite>
    Wuxi Precision Casting Factory home, welcome to visit Wuxi Yongsheng Metals Goods Co.,Ltd.!

    Favorite | Problem | Sitemap

    page_banner

    Yong Sheng Metal Products

    Piston Ring
    Mechanical parts casting
    Valve Castings
    Civil Hardware
    Casting structure
    Automotive Castings
    Workpiece
    Auto parts casting
    Structural precision casting
    Civil metal casting
    Valve class Precision Castings
    Mechanical parts casting
    Hardware
    Automotive Parts Casting
    Casting structure
    Civil metal casting
    Precision Casting Valve Parts
    Mechanical parts casting
    Valve, pump class
    Auto parts casting
    Structural precision casting
    Civil metal casting
    Precision Casting Valve Parts
    Mechanical parts casting

    Contact Us

    Contact: Zhiyong,Lu

    Hotline:86- 13806173867
    Contact: Miss Ma

    Tel: 0510-68916532
    Fax: 0510-68916533
    E-mail: lyzz@vip.163.com 
    caochuantou@163.com

    Website: http://www.jxsysd.com

    Address: No. 38 Xiqun Meicun Industrial Park Road, Wuxi


    Casting structureMore>>

    不銹鋼精鑄件

    Publisher: Wuxi Yongsheng Metals Goods Co.,Ltd. Release Time:2016/10/24 10:26:02 Clicks:1945 Close
    Previous product: Stainless steel castings  Next product: 硅溶膠精密鑄造
    Product Details
    The working life of precision castings: the organization structure caused by heat treatment is unreasonable, the grain size exceeds the standard, leading to the main properties such as toughness of castings, hot and cold fatigue properties, wear resistance and so on, affecting the working life of precision casting parts.
       The cost of manufacturing precision castings: As the intermediate or final step in the manufacturing process of precision castings, cracking, distortion and poor performance are caused by heat treatment. In most cases, castings are discarded and can be used even if they are repaired. Will increase the working hours, extended delivery time, increase the cost of manufacturing castings.
    Precision casting precision manufacturing: organizational transformation is not uniform, incomplete heat treatment and the formation of residual stress caused by excessive casting after the heat treatment, assembly and precision casting process of deformation, thereby reducing the accuracy of precision casting, or even scrap .
       Precision casting parts strength: heat treatment process is not properly developed, heat treatment operation is not standardized or heat treatment equipment is not good, resulting in the strength of the castings to be processed (hardness) can not meet the design requirements.
    It is heat treatment technology and the quality of precision casting closely related, making these two technologies in the process of modernization, mutual promotion and common improvement. In recent years, the international precision casting heat treatment technology is the rapid development of the field of vacuum heat treatment technology, precision casting parts of the surface hardening technology and precision casting material pre-hardening technology. Http://www.cnwxyszj.com
    About Us

    Wuxi Yongsheng Metals Goods Co.,Ltd.

    Hotline:86-13806173867

    Contact: Zhiyong Lu
    Contact: Miss Ma

    Tel: 0510-68916532
    Fax: 0510-68916533
    E-mail: lyzz@vip.163.com

     caochuantou@163.com

    Website:http://www.jxsysd.com

    Address: No. 38 Xiqun Road Industrial Park, Jiangsu Wuxi Meicun

    Order online
    Ordering Products: 
    Contact: 
    Tel: 
    Address: 
    Email: 
    Remarks: 
    Code:  8542
      
    Related Products
    ????

    QQ??????

    • Customer Advisory
    • ??????????????
    • ??????????????
    • Technical consulting
    • ??????????????
    Click to hide
    国产AV无码专区亚洲AV麻豆丫| 高潮喷吹一区二区在线观看| 久久综合色一综合色88欧美| 国产午夜福利AV在线机视频| 国产久RE热视频精品播放| 最近2019中文字幕大全视频1 | 国产AV无码专区亚洲AV紧身裤| 日本熟妇浓密毛毛多| 亚洲精品午夜久久久国产| 亚洲av熟女国产一区二区三区视| 日韩在线电影一区两区| 精品日韩亚洲AV无码一区二区三区| 无码免费毛片手机在线无卡顿| 欧美卡1卡2卡3| 国产三级精品视频网| 亚洲精品无码乱码成人| 欧洲精品成人免费视频在线观看| 国产一区二区三区在线观看免费| 国产精品国色综合久久| 亚洲αv久久久噜噜噜噜噜| 亚a∨国av综av涩涩涩| 久久国产成人亚洲精品影院老金| 91精品久久久久久| 99久久夜色精品国产一区二区三区 | 高清乱码一卡二卡视频| 日韩av在线一区二区三区四区 | 亚洲精品一区二区在线电影 | 开心五月激情综合婷婷色| 免费网站v片在线亚洲| 欧美大屁股bbbbbxxxxx| 丰满人妻少妇精品一区二区三区 | 香蕉欧美成人精品a∨在线观看| 国产美女精品自在线不卡| 又大又粗又爽免费视频A片| 无码激情亚洲一区| 亚洲五月天丁香婷婷| 色香阁综合无码国产在线| 野花社区www在线高清下载| 亚洲一线产区二线产区分布图片| 色与欲影视天天看综合网| 日本国产欧美精品一区二区三区|