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


        Structural precision castingMore>>

        Precision casting

        Publisher: Wuxi Yongsheng Metals Goods Co.,Ltd. Release Time:2020/8/6 17:02:10 Clicks:1455 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:  1931
          
        Related Products
        ????

        QQ??????

        • Customer Advisory
        • ??????????????
        • ??????????????
        • Technical consulting
        • ??????????????
        Click to hide
        香蕉免费一区二区三区| 少妇高潮惨叫久久久久电影| 亚洲999一在线观看www| 乱色熟女一区二区三区| 国产熟女自拍偷拍视频| 亚洲精品成人无码中文毛片| 免费无码作爱视频| 亚洲熟妇AV一区二区三区| 成人av一区二区蜜桃| 无码毛片视频一区二区本码| 丰满少妇女人A毛片视频| 久久精品国产亚洲av麻豆天堂| 婷婷综合久久一区二区三区| 国产裸拍裸体视频在线观看 | 亚洲AV之男人的天堂| 久久亚洲AV男人的天堂仙踪林| 午夜福利免费一区二区| av不卡在线一区二区三区| 成人黄网站免费永久在线观看| 欧美日韩亚洲国产黄片| 色综合夜夜嗨亚洲一二区| 亚洲成人av一区二区三区| 国产成人福利精品在线| 免青青草免费观看视频在线| 中文字幕在线人妻视频| 人妻少妇精品专区性色AV| 精品人妻潮喷久久久又裸又黄| 99久久国产综合精品五月天| AV无码免费一区二区三区| 久久国产精品欧美日韩| 真人在线射美女视频在线观看| 一亚洲一区二区中文字幕| 大帝av在线一区二区三区| 亚洲日本欧洲国产精品| 欧美精选一区二区三区| 在线观看中文字幕一区二区三区 | 粉嫩人妻自拍偷拍视频| 国产日韩精品在线观看| av网站可以直接看的| 亚洲国产欧美在线人成大黄瓜| 色自拍去偷拍亚洲免费|