Professional manufacture offer single-sided/double-sided pcb, multilayer pcb, rigid board, flexible pcb, pcb assembly and so on. Base material: FR-1, FR-2 ... : +/-0.025mm, min +/-0.015mmBase material thickness control: +/-0.03mmConcentric degree: <0.1mmSurface finishes: HASL, OSP, electrolytic Ni/Au, electroless Ni ...