亚洲成a人片在线观看中文!!!_色色色999韩_欧美成人影院免费观_色综合综合色综合色综合_成人综合一区二区_日韩欧美精品一区

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: 天天干天天操天天爽 | 欧洲成人午夜免费大片 | 亚洲国产日韩欧美在线 | 999国产一区二区三区四区 | 高清中文字幕免费观在线 | 青草青草久热精品视频在线网站 | 国产乱子伦一区二区三区 | 日韩精品在线一区 | 性欧美高清极品猛交 | 久久综合色婷婷 | 超级碰97| 国产小视频免费在线观看 | 精品无码国产一区二区日本 | 欧美一页 | 午夜影院在线免费观看 | 一本大道久久a久久精二百 日韩三级中文 | 精品伊人久久久大香线蕉欧美 | 午夜影院在线观看视频 | 成人淫片免费视频95视频 | 亚洲综合精品一区二区三区中文 | 日韩色小说 | 婷婷六月天 | 亚洲日本香蕉 | 国产精品视频999 | 国产精品视频在线观看 | 国产日本三级欧美三级妇三级四 | 波多野结衣一区二区三区在线观看 | 亚洲综合国产一区二区三区 | 91精选国产91在线观看 | 日韩综合在线视频 | 国产极品福利视频在线观看 | 日本一区二区视频在线 | 欧美日韩亚洲国内综合网俺 | 国产日韩视频 | 污视频免费在线观看 | 欧美亚洲一区二区三区在线 | 国产91一区二这在线播放 | 日日噜噜夜夜狠狠视频buoke | 久久精品久久久 | 国产中文字幕在线观看 | 一级毛片免费播放 |