... -time. Material : FR1, FR2, HB,CEM1,CEM3, FR4 with High-Tg/CTI,Halogen Free,Rogers,Argon,Taconic,Aluminium based, Leadfree ... : 23inch*35inch ( 584.2mm*889mm )Layer: 1-30Layer The standard PCB thickness:5.1-276mil ( 0. 13-7.0mm)Max Aspect ... HASLSelective Surface finishes Special technology: Blind hole PCB,Buried via PCB, Impedance control PCB,Heavy Cu PCB (8oz) Controlled Impedancetolerance: up to 50Ω ...