国产一区二区三精品视频_成人午夜在線觀看國產_亚洲一级片免费播放_日本欧美三级_日本a网一区二区_国产后高清在线视频_国产精品久久电影中文字幕_你懂的视频免费观看_國產成人精品午夜二三區_蜜臀av午夜在线

Doppel Instruments (Guangzhou) Co., Ltd. is an innovative technology enterprise that focuses on the research and development, production, sales, and technical services of fluid measurement instruments. Since its establishment, the company has actively promoted product research and innovation, with R&D personnel accounting for over 60%. The R&D team comes from well-known enterprises and institutions in Germany, the United States, Canada, and China. The technical backbone has served the Fortune 500 and has over ten years of industry experience. The company has intelligent and modern production workshops, advanced automation equipment, and high-precision calibration devices. The three major series independently developed and produced by the company, with over ten products, have been widely applied in various industries such as automotive manufacturing, home appliance manufacturing, optoelectronics, food, chemical, thermal power, building materials, metallurgy, textiles, printing and dyeing, etc., meeting the customer needs of various industries.