... sort of "core"> Triangular core without cutting, and no punching, eliminating the traditional transformer horizontal, vertical joints, reducing the reluctance ... roll core , which is no need the cross-cutting device, eliminating quality luctuations caused by Artiicial lamination, stacked ... to use 65500 (yuan) for Purchasing S11-M transformer and need to use 73550 (yuan) for S13-M.RL transformers, using ...