午夜福利av一区二区,久久精品人妻系列在线,成人午夜做爰高潮片免费,人妻丝袜在线日韩精品,亚洲熟女少妇淫语高潮,日本在线观看一区不卡,人妻中文字幕不卡精品,黑人和中国熟女啪啪视频,国产精品午夜福利一区,国产精品久久九九av

<li id="gc843"></li>
<center id="gc843"></center>
<label id="gc843"></label>

  • <center id="gc843"><optgroup id="gc843"></optgroup></center>
    <li id="gc843"><tbody id="gc843"><listing id="gc843"></listing></tbody></li>

      • 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://m.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:2137 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://m.jxsysd.com

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

        Order online
        Ordering Products: 
        Contact: 
        Tel: 
        Address: 
        Email: 
        Remarks: 
        Code:  5043
          
        Related Products
        ????

        QQ??????

        • Customer Advisory
        • ??????????????
        • ??????????????
        • Technical consulting
        • ??????????????
        Click to hide
        99人妻少妇一区二区三区| 韩国三级观影一区二区| 色婷婷国产精品久久包臀| 久青青草视频手机在线免费观看| 午夜精品久久久久久99热| 边摸边脱吃奶边高潮视频免费| 99午夜福利一区二区| 国产精品久久久久久久久久梁医生| 亚洲综合av一区二区| 一二区视频中文字幕乱码| 日本在线中文字幕一区| 亚洲最大无码AV网站观看| 开心五月欧美激情亚洲| 精品人妻一区二区蜜臀av| 中文字幕在线日韩一区| 国产精品一区二区三区蜜臀| 公么大龟弄得我好舒服秀婷视频 | 国产精品999| 亚洲精品精品日本日本| 青青草一级视频在线观看| 亚洲AV无码有乱码在线观看| 性色av乱码一区二区三区久久| 三级日本一区二区三区| 欧美日韩不卡视频在线看| 久久久久人妻一区二区三区| 太刺激了国语精彩对白| 欧美一区二区黑人粗大| 人妻精品久久中文字幕| 99精品国产再热久久无毒不卡| 中文字幕黄色一区二区| 国产精品自拍亚洲一区| 久久精品这里就是精品| 亚洲国产成人综合视频| av熟女乱入一区二区| 欧美大香线蕉伊人久久| 日本特黄特黄刺激大片| 国产精品视频一区二区三区视频| 亚洲天堂av免费在线| 精品无码专区亚洲| 国产黄色精品一区二区| 欧美国产日韩综合一区伦精|