I want to correct it. What's the difference between domestic stents and imported stents? What's the price difference?

At present, there are three kinds of orthoses in ruitai Jidong Stomatological Hospital, which are metal dragging trough, semi-invisible ceramic bracket and invisible correction. For the metal self-locking groove, the imported self-locking groove is more rounded, the comfort is relatively higher, the orthodontic force is more accurate and the efficiency is high. The price gap with domestic products is 4-5 thousand yuan. Invisible correction, imported invisible correction is more comfortable, the film is softer and the correction strength is more accurate. The price difference between imported invisible correction and domestic invisible correction is around 10000- 15000.