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: 欧美一区二区在线观看 | 一品道门免费高清视频 | 男人私gay挠脚心vk视频 | 国产制服丝袜91在线 | 97亚洲狠狠色综合久久久久 | 久久se视频精品视频在线 | 国产精品欧美亚洲 | 日本孕妇大胆孕交 | 撕烂衣服扒开胸罩揉爆胸 | 果冻传媒 在线播放观看 | 扒开小处30p | 日本亚洲欧洲免费旡码 | 久久影院毛片一区二区 | 俄罗斯美女性生活 | 神马老子影院午夜伦 | 亚州精品永久观看视频 | 成人免费视频在线播放 | 国产香蕉尹人视频在线 | www.一级毛片 | 中文在线观看永久免费 | 久久久无码精品亚洲A片软件 | 河南老太XXXXXHD| 久久伊人精品青青草原2021 | 日本aa大片 | 一本之道高清视频在线观看 | 亚洲日韩一区精品射精 | 97在线国内自拍视频 | 无码日本亚洲一区久久精品 | 射漂亮黑b丝女 | 国产亚洲人成网站在线观看播放 | 两个人的视频免费 | 免费被靠视频动漫 | 国产白丝JK被疯狂输出视频 | 国内精品国内自产视频 | 中文字幕蜜臀AV熟女人妻 | 人人艹人人 | 极品少妇高潮啪啪AV无码 | 日本亚洲精品色婷婷在线影院 | 精品成人在线视频 | 成人在线视频在线观看 | 511麻豆视传媒精品AV |