• <thead id="yxa5c"></thead>
    <blockquote id="yxa5c"></blockquote>

    <del id="yxa5c"><b id="yxa5c"></b></del>

    <meter id="yxa5c"></meter>
      <meter id="yxa5c"><dfn id="yxa5c"></dfn></meter>
      熟妇丰满大屁股在线播放,男人扒开女人腿做爽爽视频 ,欧美性xxxxx极品娇小,色欲天天天无码视频,免费观看全黄做爰大片,亚洲人成在线观看网站不卡,亚洲色成人网站永久,久久国产精品老女人
      Company Profile
      Company Profile
      |
      2023.08.14
      Enterprise Profile

      Guangdong Zhongshi Metal Co., LTD., a high-tech enterprise, welding material supplier for national aerospace and military units, is a manufacturer that provides high-quality welding materials and customized metal materials for aerospace, military and civil industries. Founded in 1999, the company is headquartered in Songshan Lake High-tech Industrial Development Zone, Dongguan City, Guangdong Province. The registered capital is 22 million yuan, with an annual capacity of 8,000 tons.

      ?

      The company's products are: preformed solder, solder paste, tin wire, tin bar, BGA tin ball, anode rod, flux, cleaning agent, adhesive, gold wire and gold belt series, custom high precision copper shaped wire and other categories. Products are used in military, aerospace, medical, global electronics and other fields. Cooperative customers include China Aerospace Science and Industry Corporation, Aerospace Science and Technology Group, China Electronics, China Weapons, China Shipbuilding, Chinese Academy of Sciences, Guilin Aerospace Electronics, Shaanxi Aerospace Navigation Equipment Co., LTD., Huawei, ZTE, TCL, BYD, Jingxin Communications, Emerson, Huabai, Huaqin Group, Quanhan, etc.

      ?

      The company has more than 30 independent research and development patents, including 21 invention patents authorized, 2 appearance patents authorized, 1 utility model authorized, and 7 invention patents currently under actual examination. Among them, the patent of "a halogen-free flux for lead-free solder paste and its preparation method" is applied to any product with halogen-free requirements and focuses on environmental protection. The patents of "A high reliability low temperature lead-free solder paste and its preparation method" and "a cored solder wire solid flux that can reduce flying" are suitable for a variety of electronic base plate materials and multiple process Windows, and have a wide range of applications in the electronics industry.

      ?

      The company has won a number of honorary titles, and has been awarded as "National high-tech Enterprise", "Guangdong Engineering Technology Research Center", "Guangdong Famous brand products", "electronic tin solder professional top ten enterprises", "Guangdong Province contract and credit enterprises", "Dongguan patent cultivation Enterprise" and other honorary titles.

      ?

      Committed to R & D innovation is the core value of the company, the company's annual investment in R & D funds accounted for more than 5% of the turnover, R & D team has senior, professional, assistant R & D engineers 19, accounting for about 10% of all members. In addition, the company has conducted technical exchanges and cooperation with Tsinghua University, South China Institute of Technology, Ukraine Barton Welding Research Institute and other universities for a long time, and formed a research and development elite team led by a doctoral supervisor.

      ?

      Zhongshi will adhere to the concept of scientific research and innovation, quality first, and customer service, and strive to be the leader of the global industry.

      Zhongshi spirit: innovation and enterprising, the pursuit of excellence, create and share, return to society.

      主站蜘蛛池模板: 一区二区三区在线 | 日| 狠狠色老熟妇老熟女| √天堂中文官网8在线| 亚洲乱码日产精品m| 日韩一区二区三区无码免费视频 | 亚洲乱码无人区卡1卡2卡3| 国产又粗又猛又大爽又黄老大爷| 国产亚洲视频在线观看播放 | 亚洲国产精品成人久久久| 狠狠色噜噜狠狠狠狠蜜桃| 欧美综合人人做人人爱 | av无码动漫一区二区三区精品 | 日本少妇内射视频播放舔| 播放男人添女人下边视频| 亚洲成a人片在线观看的电影| 国产三级在线观看免费| 日韩av一中美av一中文字慕| 日韩一区二区三区无码a片| 中国少妇内射xxxx狠干| 青青视频在线观看免费2| 人妻少妇被粗大爽9797pw| 日韩内射美女片在线观看网站| 99久久精品毛片免费播放高潮| 中文字幕在线精品视频入口一区| 亚洲人成在线观看影院牛大爷| 国产成人无码a区在线观| 亚洲ⅴ国产v天堂a无码二区| 亚洲成色在线综合网站免费| 国产99视频精品免视看9| 亚洲精品无码av人在线观看国产| 亚洲综合av色婷婷国产野外| 国产精品久久久久久亚洲| 国产乱人伦av在线麻豆a| 思思99热久久精品在线6| 国产免费福利在线视频| 又污又黄又无遮挡的网站| 国产99久久亚洲综合精品| 国产裸体xxxx视频在线播放| 18禁真人抽搐一进一出动态图| 真实国产精品vr专区| 日韩国产成人无码av毛片|