Layer: 1-24 layer Rigid Pcb 1. MaterialFR-4 (High TG 150?C- 280?C) , FR-1, FR-2, CEM-1, CEM-3, Rogers, Halogen Free, Aluminium Base2. Surface Finish:1). HAL, HAL Lead Free, OSP ( Entek ), Immersion Gold, Immersion Tin/Silver, Flash Gold 2). Solder Mask: LPI, Green/Red/Blue/Yellow/Black 3)....