Trolley structure and it can be applied in the ... Parameters:Structure: portable and trolley, KJ-4001, 4002, 4003 and 4003(workstation)Display mode: Convex array: B, B/B,4B, B+M, and MMagnification: ... guide: The puncture guide line can be displayed under B mode.Gain control: The total gain, near field and ... check intrauterine equipment, pregnancy and so on.. KJ-4003 Trolley B Ultrasound scanner