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


        Civil metal castingMore>>

        Stainless steel castings

        Publisher: Wuxi Yongsheng Metals Goods Co.,Ltd. Release Time:2016/10/24 10:26:39 Clicks:1885 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://m.jxsysd.com

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

        Order online
        Ordering Products: 
        Contact: 
        Tel: 
        Address: 
        Email: 
        Remarks: 
        Code:  7445
          
        Related Products
        ????

        QQ??????

        • Customer Advisory
        • ??????????????
        • ??????????????
        • Technical consulting
        • ??????????????
        Click to hide
        青青草无码精品伊人久久蜜臀| 亚洲乱码精品中文字幕| 亚洲av粉色一区二区三区| 日本阿V网站在线观看中文| 91精品国产人妻女教师| 日本亚洲欧美一区精品| 大屁股大乳丰满人妻| 精品久久久久久久无码| 野外妇女被弄得喷白浆| 午夜视频免费在线网站| 亚洲欧美一区二区三区午夜寻花| 小15箩利洗澡自慰无码| 人妻少妇被粗大爽视频| 国产午夜草莓视频在线观看| 国产欧美亚洲精品A第一页| 国产午夜亚洲精品不卡| 亚洲欧美偷窥丝袜美腿| 年轻内射无码视频| 懂色av不卡在线中文| 国产av中文字幕精品| 高潮又爽又无遮挡又免费| 精品久久久中文字幕人妻| 欧美大胆A级视频免费| 亚洲国产成人精品综合色| 五月激情欧美亚洲综合网站| 国产免费美女诱惑av| 成人av在线在线观看| 国产精品激情自拍系列| 黄色三级日本人妻系列| 国产成人深夜福利在线| 亚洲欧美日韩成人精品| 亚洲欧美中文丝袜综合| 日韩av网站免费在线| 奇米影视狠狠88888片| 按摩女内射少妇一二三区| 性猛交ⅩXXX富婆视频| 中文字幕另类日韩欧美| 国产av综合色高清自拍| 精品少妇人妻成人一区二区| 国产人妻久久精品二区| 天啦噜国产精品亚洲精品|