Supplier from Shenzhen,China. Material: Teflon laminate material; Layer: 2-34 layers; Quality standard: IPC Class 6012 2 or IPC Class 3; Copper thickness: base copper 0.5oz, finished copper thickness 1oz; Surface technology: Immersion Gold, ISIG; Sending us your needs to get the specific quotation. Adding our website in this. Welcome to visit us.