Myri brand is more famous, because he has more products, the earliest is to do guardianship cardiology origin, do ultrasound about 10 years.
Detailed raw ultrasound can be said to be slowly disappearing now, he has been slowly pressed by other manufacturers, rarely seen on the market.
Shantou ultrasound is the most professional manufacturer of ultrasound, specializing in ultrasound, other products do not do, do ultrasound has nearly 40 years of history.
Dude give points, this is all I slowly typed out, I believe you have understood.