97人洗澡人人免费公开视频碰碰碰_国产精品美乳在线观看_亚洲第一免费网站_日本三级韩国三级久久_日本一区二三区好的精华液_成人黄色激情网_久久91精品国产91久久久_国产日韩欧美一二三区_精品国产精品自拍_国产精品视频公开费视频_成人国产亚洲精品a区天堂华泰_欧美成人黄色小视频_日韩欧美国产免费播放_久久69精品久久久久久国产越南_日韩成人免费视频_日韩在线视频观看正片免费网站

GRI-9105/9107 Fixed Gas Detector No DisplayNDIR Electro PID sensor

low power microprocessor to ensure product performance and stability, realtime monitoring of the concentration of infrared gas.Applicated in petroleum chemical industry, metallurgy, mining, fire, gas, environmental protection, electric power, communication, papermaking, printing and dyeing, food res...