5个黑人躁我一个视频-国产精品久久久久久吹潮-99re热视频这里只精品-国内精品人妻久久毛片app-久久天天躁夜夜躁狠狠-中文字幕 制服 亚洲 另类

To provide the most advanced, accurate and reliable humidity instrumentation available for industrial, laboratory, calibration standard, and airborne use, emphasizing high performance chilled mirror technology。Buck Research Instruments specializes in producing High Performance Chilled Mirror Hygrometers that offer fast and accurate measurements while maintaining exceptional reliability inherent only to chilled mirror operating principles.Buck Research Instruments was founded in 1989 by Arden Buck, an internationally recognized authority on water vapor measurement, who is credited with major advances in the state of the art and has authored over 30 scientific papers. Buck Research Instruments has continued to develop new and advanced hygrometry instruments with state of the art performance.