伊人久久大香线蕉精品,亚洲国产一成人久久精品,久久99精品久久久久久三级,亚洲精品99久久久久久
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

伊人久久大香线蕉精品,亚洲国产一成人久久精品,久久99精品久久久久久三级,亚洲精品99久久久久久