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.cnwxyszj.com

        網(wǎng)址:www.jxsysd.com

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


        Casting structureMore>>

        China Precision Casting

        Publisher: Wuxi Yongsheng Metals Goods Co.,Ltd. Release Time:2015/10/17 21:16:18 Clicks:1719 Close
        Previous product: Piston Ring Castings  Next product: China Precision Casting
        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.cnwxyszj.com

        網(wǎng)址:www.jxsysd.com

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

        Order online
        Ordering Products: 
        Contact: 
        Tel: 
        Address: 
        Email: 
        Remarks: 
        Code:  7553
          
        Related Products
        ????

        QQ??????

        • Customer Advisory
        • ??????????????
        • ??????????????
        • Technical consulting
        • ??????????????
        Click to hide
        国产三级自拍视频在线| 中文字幕AV一区二区三区| 婷婷久久国产综合精品| 亚洲一区精品一区在线观看| 国产成人精品在线91| 亚洲综合色婷婷久久麻豆| 久久亚洲一级av一片| 亚洲成人av有码在线| 蜜臀在线观看一区二区| 视频一区国产精品自拍| 超碰av男人一区二区| 福利一区二区在线播放| 国产传媒精品在线播放| 国产成人综合亚洲专区| 一区二区三区视频不卡| 欧美色区一区二区三区| 一级片夫妻啪啪免费看| 免费观看羞羞视频网站| 日韩中文字幕一区二区不卡| 五月综合激情中文字幕| 中文字幕有码视频日韩| 亚洲国产视频精品一区二区| 国产综合一区二区三区av| 自拍自产精品免费在线| 国产视频在线一区二区三区四区| 香蕉在线 亚洲 欧美 专区| 亚洲综合国产成人在线| 亚洲av高清在线一区二区| 欧美黄色成人免费网站| 国产精品亚洲专区一区| 日本在线一区二区三区观看| 男人视频一区二区三区| 水蜜桃在线视频在线观看| 麻豆精品传媒一二三区| 日韩色图在线免费播放| 中文字幕亚洲区第一页| 天堂99久久久久久久久久久| av日韩精品在线观看| 国产精品久久免费视频| 国产精品三级伦理在线观看| 美女视频网址在线观看|