免费看黄在线网站-天堂国产一区二区三区-国语自产精品视频在视频-久久久精品欧美一区二区-乱色精品无码一区二区国产盗-亚洲精品一线二线三线无人区

SCIENTIFIC RESEARCH
Research Achievement

"Scientific research and innovation, layout of the future" is the foundation of Zhongshi in the first place in the industry and the expansion of territory. Since its establishment, Zhongshi has continuously attracted outstanding scientific research talents, created a research and development elite team led by doctoral supervisors and complete levels, and equipped with high-end research and development laboratories, so that Zhongshi products from research and development to demonstration testing, and then to batch listing to form a scientific and rigorous management system. At the same time, Zhongshi has achieved fruitful scientific research results, contributed a number of important patented products to the industry, and is a national standard drafting unit.

The invention relates to a silver-plated palladium alloy microsphere conductive adhesive and a preparation method thereof

Patent Number: CN200810180480.9

A high reliability low temperature lead-free solder paste and its preparation method

Patent Number: CN201610276455.5

A water-based cleaning agent can reduce the emission of pollutants in the cleaning of circuit boards

Patent Number: CN201410158283.2

A cleaning agent that can remove frosty residue from circuit boards

Patent Number: CN201410156472.6

A water-based soldering flux that can reduce the emission of pollutants during tin welding

Patent Number: CN201310238354.5

A solid flux with cored solder wire that reduces flight

Patent Number: CN201310239732.1

?

A halogen-free flux for lead-free solder paste and its preparation method

Patent Number: CN201210574561.3

A multicomponent eutectic lead-free solder of Sn-Zn-Bi and its preparation method

Patent Number: CN201210018765.9

A water cleaning flux for lead-free soldering and its preparation method

Patent Number: CN200910148739.6

A copper surface protectant for lead-free printed circuit board and its preparation method

Patent Number: CN200910131311.0

A water-based no-clean flux with no volatile organic compounds, no halogen and low solid content

Patent Number: CN200610078040.3

主站蜘蛛池模板: 欧美日韩中文国产一区| 亚洲成国产人片在线观看| 亚洲婷婷五月综合狠狠爱| 亚洲欧美国产日韩| 尤物精品国产第一福利网站| 国精产品一区一区三区| 久久精品国产福利一区二区 | 扒开双腿疯狂进出爽爽爽视频| 成在人线无码aⅴ免费视频| 免费做a爰片久久毛片a片| 亚洲精品无码国产片| 色欲色欲天天天www亚洲伊| 少妇高潮av久久久久久| 亚洲人成网网址在线看| 一区二区传媒有限公司| 国产老师开裆丝袜喷水视频| 天天爽夜夜爽人人爽| 精品欧美аv高清免费视频| 欧美人与物videos另类| 中文字幕在线观看国产| 五月花成人网| 久久99成人免费| 狠狠色噜噜狠狠狠狠色综合久| 99久久亚洲精品日本无码| 亚洲色无码综合图区手机| 国产又滑又嫩又白| 精品国产av色欲果冻传媒| 水蜜桃色314在线观看| 国产精品视频在线观看| 四虎一区二区成人免费影院网址 | 女人被弄到高潮的免费视频| 国产成人精品人人做人人爽| 精品人妻伦九区久久aaa片| 韩国三级午夜理论| 无码人妻丰满熟妇区五十路百度| 亚洲图片一区二区| 亚洲第一福利网站在线| 亚洲最大的成人网| 无码国产精成人午夜视频| 国产乱人伦真实精品视频| 免费看男女做好爽好硬视频|