Dy style transformers. The transformers will have more harmonious and beautiful shape, smaller overlooking projective area, and better product structure efficiency. High-capacity transformer cores adopt tensile structure technology. Our main amorphous cores are as follows: 1) Three-phase Three-column Amorphous Cores with Tensile plate and muffler hole, suitable for High-capacity transformers; 2) Three-phase Three-column Amorphous Core without Tensile plate, suitable for Small-capacity transformers;