To change tracks, bendable switches are used which consist of a continuous steel beam which is elastically bent by means of electro-mechanical setting drives.
若要改道，可采用曲性道岔。这些曲性道岔由无缝钢条组成，通过机电制导装置，使其柔性弯曲。
2
It has the advantage of simple process, low cost. It also can be used for making high-precision bent tube or repairing present continuous-cast crystallizer.