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


        Auto parts castingMore>>

        Stainless steel castings

        Publisher: Wuxi Yongsheng Metals Goods Co.,Ltd. Release Time:2020/8/6 17:01:44 Clicks:1414 Close
        Previous product: Precision casting  Next product: Stainless steel castings
        Product Details
        Quality control of wax mold assembly and module etching and cleaning
        In the process of wax mold assembly in precision casting companies, the following phenomena often occur: the operator chooses the wrong die head, the wax mold welding distance is incorrect, the wax mold arrangement is wrong, the wax drips, and there are welds, etc., which are greatly affected The production rate of castings and the pass rate of one-time delivery are calculated.
        Module etching and cleaning are mainly degreasing to improve the wettability of the module and facilitate coating. Therefore, on the one hand, it is necessary to record and control the preparation and use times of the etching solution; on the other hand, it is necessary to inspect the modules by batch to observe whether the silica sol (0.5% of the volume of wetting agent) completely wets the module.
        Precision casting enterprises should strengthen the quality control of the above two points.
        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:  6187
          
        Related Products
        ????

        QQ??????

        • Customer Advisory
        • ??????????????
        • ??????????????
        • Technical consulting
        • ??????????????
        Click to hide
        久久久国产精品五月天| 日韩不卡在线高清有码| 国产无遮挡猛进猛出的| 女同性恋精品一区二区三区| 国产亚洲成人av一区| 久久精品人妻综合av| 国产一区二区三区亚洲天堂| 成人免费的性色视频网站| 国产精品午夜福利资源| 亚洲欧美制服丝袜另类一区二区| 亚洲精品国产av一区二区| 国产三级自拍视频在线| 日本人妻私密按摩久久| 国产人免费视频在线观看| 青草精品视频在线播放| 久久视频在线视频精品| 亚洲超碰狠狠中文字幕| 亚洲国产精品嫩草影院久久| 免费观看日本毛片大片| 加勒比日本东京热1区| 免费av在线观看播放| 人人妻人人澡人人爽人人精品97| 在线国产在线国产尤物| 国产美女啪啪| 国产精品久久九九av| 一二三四在线看日本高清| 四虎在线一区二区三区| 人妻啪啪一区二区三区| 亚洲av自拍偷拍熟女| 成人免费区一区二区三区| 国产欧美日韩精品第一| 国产视频一区二区国产| 国产精品一区二区自拍| 日本肥老熟妇在线观看| 日本国产亚洲一区二区| 日本中文字幕人妻系列| 亚洲综合日韩中文字幕| 亚洲人妻av一区二区| 熟女一区二区蜜桃视频| 免费人成视频网站在线| 麻豆日本女人射精视频|