PCB with Shengyi S1150G High Performance, Tg 150, CTI400-600 (PLC1), Halogen Free laminiate and Taiyo PSR-2000 Halogen Solder Mask Number of Layer:    2 V 16 Layers (1.60mm thickness) Solder Mask:    Taiyo PSR4000, Probimer 77, Sunchemical Imagecure V Series Peelable Mask:    Peters2955 Surface Finish:    Lead Free HAL, Tin-Lead HAL, Immersion Gold, Immersion Silver, Immersion Tin, Hard Gold, Flash Gold, OSP, Carbon Keypad, Gold Finger Plating.