Each one enamelled copper wire diameter 1.0mm. 2PCS thick wires be winded on the toroid core in parallel at same time in tightly easily and quickly. This special winding technology helps many toroid coil manufacturers of the toroid inductor,toroid choke coil and toroid transformer to save much more processing time and improve quality. SanShine will focus fully on developing more practical high precise automatic toroid coil winders continualy for the toroidal coils factories.