Ultrasound transmission, Ph value 5.5~8.0, high definition of displayed pictures and excellent effect of coupling optics Ultrasound transmission gelVolume: 5 LitterCharacteristics1) excellent sound conduction and high clear-cut vision2) has not any broken and cauterization effect to the probe3) is suit for the large-scale testing work,and there is not any stimulation and toxin hypersusceptibility ...