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


        Piston RingMore>>

        Wuxi precision casting

        Publisher: Wuxi Yongsheng Metals Goods Co.,Ltd. Release Time:2016/10/24 10:35:42 Clicks:1913 Close
        Previous product: 無(wú)錫精密鑄造  Next product: Wuxi precision casting
        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:  5675
          
        Related Products
        ????

        QQ??????

        • Customer Advisory
        • ??????????????
        • ??????????????
        • Technical consulting
        • ??????????????
        Click to hide
        日韩av免费在线不卡一区| 成人在线高清不卡免费视频| 亚洲欧洲日韩国产精品| 色哟哟国产精品一区二区| 亚洲国产尤物av在线| 国产午夜精品自拍视频| 激情综合五月中文字幕| 一级国产精品一级国产精品片| 野花社区在线观看WWW官网| 久久这里都是精品国产| 国产亚洲成人欧美在线| 日韩av免费在线高清观看| 97久久综合精品久久久综合| 久久亚洲区一区二区三区| 农村国产毛片一区二区三区女| 亚洲精品一区二区三区播放| 日韩少妇激情一区二区| 久精品久久精品久久精品| 亚洲精品国产精品av| 精品黄色av一区二区三区| 亚洲一区二区三区精品中文字幕| 欧美性色一区二区三区| 亚洲香蕉中文日韩V日本| 美女人妻动态免费视频| 在线免费观看日韩av| 一区二区三区内射视频在线观看 | 狠狠躁日日躁夜夜躁2022麻豆| 人妻一区二区三区黑又长| 国产精成A品人V在线播放| 国产不卡av一区二区| 亚洲欧洲日产国码久在线| 人妻激情在线免费视频| 日韩精品亚洲一区在线| 国内自拍第一区二区三区| 成人特黄特色毛片免费看| 天天爽天天爽夜夜爽毛片| 自拍自产精品免费在线| 中文字幕日韩有码在线| 女人一级特黄大片国产精品| 中文字幕欧美精选国内精品| 强乱中文字幕在线播放不卡|