• <thead id="cleyn"></thead>
    1. <bdo id="cleyn"></bdo>
      
      
      <bdo id="cleyn"><code id="cleyn"><nav id="cleyn"></nav></code></bdo>
      <rt id="cleyn"><strike id="cleyn"></strike></rt>
      亚洲啪av永久无码精品放毛片,好屌草这里只有精品,国产精品激情av久久久青桔,在线va无码中文字幕,无码超级大爆乳在线播放,涩欲国产一区二区三区四区,精品无码免费专区毛片,东京热无码国产精品
      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: 亚洲乱码无码永久不卡在线| 四库影院永久国产精品地址| 色欲aⅴ 无码| 亚洲精品国产免费无码网站| 亚洲国产成人va在线观看天堂| 欲妇荡岳丰满少妇岳| 天天躁日日躁狠狠很躁| 国产成人精品无码播放| 国产在线观看超清无码视频一区二区| 日日摸处处碰夜夜爽| 久热这里只精品99国产6| 亚洲人成77在线播放网站| 国产精成人品一区| 国产乱码日产精品bd| 少妇激情艳情综合小视频| 免费无码十八禁污污网站| 免费毛片全部不收费的| 日日碰狠狠添天天爽超碰97| 97色碰碰公开视频| 国产超级va在线观看视频| 中国杭州少妇xxxx做受| 亚洲欧洲成人av每日更新| 精品一二三区久久aaa片| 一区二区三区精品视频免费播放| 国产熟女一区二区三区五月婷 | 综合精品欧美日韩国产在线| 精品无码av一区二区三区| 中文天堂在线资源www| 国产精品午夜视频自在拍| 69麻豆天美精东蜜桃传媒潘甜甜 | 亚洲 自拍 色综合图区av网站| 999久久国产精品免费人妻| 伊人色合天天久久综合网| 蜜臀国产在线视频| 高清视频在线观看一区二区三区| 黑人性较视频免费视频| 久9re热视频这里只有精品| 欧美日韩国产码高清综合人成| 久久99国产精品久久99软件| 亚洲精品久久国产精品浴池| 国农村精品国产自线拍|