ultrasonic couplant 1.speed:1520-1620M/S 2.PH:5.5~8 3.viscosi:>=15PA.S 4.high quality,wholesale price,with CE ultrasonic couplant1.non-sensitization of skin ,and wipb out easyly2.it is a necessities for A,B,M,D Ultrasonic diagnosis .3.pictyrb display and undunspoilt ultrasonic probe.4.high quality,wholesale price,with CE medical products Ultrasonic couplant