最新国产成人综合在线观看-最新国产v亚洲v欧美v专区-最新更新国内自拍视频-最新高清无码专区-麻豆成人-麻豆按摩

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: 色老99九久精品偷偷鲁 | 国产h视频免费观看 | 日韩欧美高清一区 | 精油按摩日本 | 国产成人精品免费视频大 | 精品久久99麻豆蜜桃666 | 在线观看永久免费网站 | 成人毛片一区二区三区 | 久久精品国产亚洲AV麻豆欧美玲 | 伊人狠狠丁香婷婷综合尤物 | 手机在线免费 | 美女视频黄色的 | 被老总按在办公桌吸奶头 | 99视频导航 | 扒开老师大腿猛进AAA片 | 精品午夜国产福利观看 | 中文字幕精品在线观看 | 丰满的女朋友韩国版在线观看 | 扒开小处30p | 欧美多毛的大隂道 | 亚洲精品福利一区二区在线观看 | 久久国产视频网站 | 中文视频在线 | 四虎影视国产精品亚洲精品 | 跪趴式啪啪GIF动态图27报 | 国产偷国产偷亚州清高 | 伦理片在线线手机版韩国免费观看 | 欧美成人中文字幕在线视频 | 偷拍亚洲色自拍 | 国产在线观看免费观看不卡 | 国产色播视频在线观看 | 免费视频国产 | 久久网站视频 | 蜜芽丅v新网站在线观看 | 丰满大屁俄罗斯肥女 | 四虎国产精品免费观看视频 | 亚洲一区免费看 | 天天躁躁水汪汪人碰人 | 亚洲精品国产国语 | 欧洲最大无人区免费高清完整版 | 中文字幕不卡一区二区三区 |