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


        Mechanical parts castingMore>>

        Piston Ring Castings

        Publisher: Wuxi Yongsheng Metals Goods Co.,Ltd. Release Time:2015/10/13 18:32:53 Clicks:2165 Close
        Previous product: Sol precision castings  Next product: Sol precision castings
        Product Details
        Valve castings should have a high strength, stiffness and abrasion resistance, in order to maintain its accuracy is not with the cutting conditions, the use of time and other factors have significant changes, so as to enable the part to be machined with a desirable accuracy and finish. Appropriate choice of materials, heat treatment process and rational structure is the casting performance to meet the requirements. Casting detection process are:
        1, eye observation, for obvious defects on castings, such as water shortage, severe surface defects and other cool levels.
        2, valve casting dimensions measured, to ensure compliance with the tolerance requirements.
        3, metallurgical, chemical, physical and other related casting intrinsic quality testing. Detection means includes: pressure test, in order to determine the casting leak site;-ray detection, magnetic particle inspection, fluoroscopy and ultrasound probe so as to detect the casting surface and internal defects; mechanical testing to determine the mechanical properties of valve castings, such as tensile strength and hardness.
        If you detect a defect less serious, the user's consent, you can use welding, grinding or other remedy repair castings.
        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:  8210
          
        Related Products
        ????

        QQ??????

        • Customer Advisory
        • ??????????????
        • ??????????????
        • Technical consulting
        • ??????????????
        Click to hide
        亚洲高清一区二区三区在线观看 | 国产精品尹人在线观看| 无码内射成人免费喷射| 三级三级一区二区三区| 国产黄片一区视频在线观看| av成人资源在线播放| 国产成人午夜高潮毛片| 国产肥熟女视频一区二区三区| 久久国产精品无码网站| 有码国内精品人妻少妇| 国产熟女高清一区二区| 精品熟女av免费久久| 国产亚洲男人av一区三区| 国产探花精品在线播放| 日韩精品首页在线观看| 亚洲av粉嫩性色av| 少妇高潮喷水在线观看 | 亚洲最大av免费观看| 国产精品一区视频日韩| 国产精品一区二区三区不卡| 精品蜜臀AV在线天堂| 中文字幕一区二区精品区| 激情五月激情月婷婷六月| 亚洲精品2区在线观看| 伊人天堂AV无码AV日韩AV| 人妻中文字幕乱码视频| 视频日本一区二区三区| 国产美女高潮流白浆免费观看| 人妻日韩人妻中文字幕| 日本一区二区国产高清在线播放| 久久精品少妇人妻一区| 97AV麻豆蜜桃一区二区| 久久久久亚洲av成人人人| 国产高清在线不卡一区| 欧美一区二区福利视频| 亚洲精品视频熟妇人妻| 少妇被粗大的猛烈进出图片| 色播美女五月在线看观看| 亚洲中文字幕一区二区| 亚洲视频不卡免费在线| 日韩精品在线观看成人|