韩国19禁电影在线观看_丝袜伦理电影_HD中文字幕在线观看,4ady,逃狱者夫目前侵犯中文字幕,放荡护士12p

D900 Box gas micro-differential pressure gauge

0-60Pa to 1KPa measurement, accuracy 5% variable lens dial design, can be panel mounted air and compatible gas positive pressure, negative pressure and differential pressure measurement, suitable for biological safety cabinets, clean workstations, medical respiratory therapy equipment up