一本久道久久综合狠狠爱_粗大的内捧猛烈进出视频嘿嘿视频_国精无码欧精品亚洲一区_熟妇女人妻丰满少妇中文字幕,久久精品一区二区三区-无码人妻精品一区二区三区不卡-久久亚洲国产精品五月天婷-国产精品岛国久久久久-国产三级精品三级男人的天堂 ,国产亚洲精品97AA片在线播放|日韩欧美国产AⅤ另类|国产乱子伦视频三区|无码a√毛片一区二区三区|国产成本人片免费a∨短片|中文字幕a∨无码专区不卡|亚洲日韩国产成网在线观看 ,人妻体内射精一区二区三区_日韩欧美亚洲每日更新在线观看_日本按摩高潮A级中文片_99在线无码精品秘

中文
EN

National service hotline:   13956259526      13905620906

Business philosophy

Quality is the lifeline

News

Tongling Yuanyi Precision Machinery Co., Ltd.
Address: 129 west Cuihu road 5, Tongling Economic Development   Zone, Anhui Province

Tel:+86 13956259526       

Tel:+86 13905620906
E-mail:sale@yyjgjx.com    

Skype:elena.chen93

News

Study on the cavity of package mould by Tongling Yuanyi Precision Machinery Co., Ltd.
Release time:2019-05-16 09:04:40 | Browse times:

  

According to the characteristics of some packaged molds, through the study of EDM discharge technology, we have effectively solved the uniformity of the surface roughness of the QFN type cavity surface, the SOT/SOP type cavity surface release, and the spherical contour of the LED spherical cavity. Degree, mirror surface roughness.


 

 
 Last chapter:The development of the mold industry puts new demands on equipment
 Next chapter:Company's 10th Anniversary Celebration: Huangshan Hongcun 2 day Tour
HOME/ ABOUT YUANYI/ News/ PRODUCT/ Join us/ Contact us/ Message/ Answers/

Tongling Yuanyi Precision Machinery Co., Ltd.

Tel:+86 13956259526        Tel:+86 13905620906       

E-mail:sale@yyjgjx.com     
Address: 129 west Cuihu road 5, Tongling Economic Development Zone, Anhui Province

Copyright of Tongling Yuanyi Precision Machinery Co., Ltd. Technical support:Creation Network

原平市| 运城市| 墨江| 蒙山县| 莱州市| 黑山县| 安宁市| 如皋市| 内江市| 溆浦县| 旬邑县| 溧水县| 平顶山市| 达拉特旗| 黔江区| 巴林右旗| 海盐县| 明溪县| 林口县| 右玉县| 宕昌县| 晋中市| 德庆县| 平凉市| 宜章县| 济南市| 临汾市| 大连市| 信宜市| 永定县| 闵行区| 巴楚县| 绥滨县| 通许县| 寿宁县| 桐柏县| 农安县| 南木林县| 阜新市| 榆社县| 汕尾市|