If you have questions about our products you own, Fill out the form below and we will answer any questions you have. Tips: Fields marked with*are required. Multilayer Aluminum PCBMultilayer Aluminum PCB Manufacturing Multilayer aluminum PCBs are made by bonding together multiple layers of aluminum and insulation material using heat and pressure. The process begins by bonding t ... File Upload:*Verify Human: Which is bigger, 6 or 8?