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 Flexible Printed Circuit Boards (FPC) ManufacturerMaterials for Manufacturing Multilayer Flexible PCBs The base material, cover film, reinforcing material, and other auxiliary materials are the primary raw materials used in the production of multilay ... File Upload:*Verify Human: Which is bigger, 6 or 8?