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://www.jxsysd.com

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


        Civil metal castingMore>>

        Stainless steel castings

        Publisher: Wuxi Yongsheng Metals Goods Co.,Ltd. Release Time:2016/10/24 10:26:39 Clicks:2034 Close
        Previous product: Stainless steel castings  Next product: 不銹鋼精鑄件
        Product Details
        不銹鋼精鑄件,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:  2195
          
        Related Products
        ????

        QQ??????

        • Customer Advisory
        • ??????????????
        • ??????????????
        • Technical consulting
        • ??????????????
        Click to hide
        尤物视频黄的在线观看| av在线免费观看蜜臀| 国产精品粉嫩在线播放| 91人妻国产精品麻豆| 在线观看国产内射视频| 激情人妻av一区二区| av网站可以直接看的| 少妇被粗大的猛进69视频| 亚洲国产激情免费观看网站| 一级一片内射在线观看| 成年人av毛片在线观看| 日本午夜免费福利视频| 中文亚洲精品在线观看| 超碰在线精品中文字幕| 欧美农村妇女区一区二区| 韩国少妇人妻av久久| 中文字幕久久久久人妻| 久久精品国产亚洲av高| 国产欧美日韩一区精品| 国模偷拍视频一区二区| 天天躁夜夜躁狠狠综合| 日本在线不卡一区二区三区视频 | 亚洲黄色成人在线观看| 真实露脸国产熟妇在线| 粗大猛烈进出高潮视频免费看| 亚洲另类欧美亚洲精品免费| 日韩熟女高清精品专区| 亚洲亚洲亚洲亚洲亚洲天堂| 人妻少妇偷人一区二区| 成人特黄特色毛片免费看| 真实露脸国产熟妇在线| 北条麻妃在线一区二区| 国产亚洲精品日韩欧美| 成人午夜免费福利体验| 成人深夜节目在线观看| 国产av巨作久久婷婷| 无套内射清纯美女视频| 18禁黄网站男男禁片免费观看| 久久久一区二区日韩精品| 操到高潮喷水在线观看| 久久精品亚洲日本波多野结衣|