• <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: 国产成久久免费精品av片| 人妻少妇精品无码专区动漫| 国产精品亚洲玖玖玖在线观看| 国产在线高清视频无码| 真实国产乱子伦精品一区二区三区| 亚洲成av人片无码不卡播放器| 国产午夜成人无码免费看不卡| 亚洲日韩成人无码不卡网站| 少妇精品视频无码专区| 久久人人97超碰爱香蕉| 国产嫖妓一区二区三区无码 | 国产极品粉嫩泬免费观看| 亚洲精品综合欧美一区二区| 无码专区手机在线播放| 东京热无码人妻系列综合网站| 风韵丰满熟妇啪啪区老老熟女百度 | 蜜桃视频成人专区在线观看| 国产在线观看香蕉视频网| 免费无码h肉动漫在线观看| 老子影院午夜伦不卡无码 | 鲁一鲁一鲁一鲁一澡| 免费国产va在线观看视频| 激情久久亚洲小说| 国产98涩在线 | 欧洲| 97久久超碰成人精品网页| 中文字乱码电影在线播放| 一区二区三区在线 | 中国 | 亚洲a∨国产av综合av网站| 国产成人精品亚洲777人妖| 色偷偷亚洲男人本色| 18禁真人抽搐一进一出免费| 男女性潮高清免费网站| 日本www.在线中文字幕| 欧美激情黑人极品hd| 亚洲欧洲日韩极速播放| 岛国在线观看无码不卡| 99久久爱re热6在播放| 亚洲综合天天夜夜久久| 国产乱子伦农村叉叉叉| 天堂av男人在线播放| 中文字幕人妻丝袜乱一区三区 |