18-layer wirewound PCB is one of the series of thick copper PCB circuit boards developed and produced by Shenzhen Benqiang Circuit Co. The thick copper PCB circuit board is made of raw material S1000-2M, the surface is made of gold-plated production process, the smaller aperture up to 0.8mm, the smaller line width line spacing up to 6/6mil, is the necessary PCB circuit board products in the field of wire-wound boards.