1) Layer: from 1 to 20 2) Board finished thickness: 0.5-6.0mm 3) Material: FR-4,CEM-1, CEM-3, High TG, FR4 Halogen Free, etc 4) Surface finish/treatment: HASL/HASL lead free, HAL, Chemical Gold/tin, Immersion Silver/Gold/Tin, OSP, Gold plating, Hard &Soft gold, Plating tin. 5) Product range: Flex-PCB, Rigid-PCB, Flex-rigid PCB,HDI PCB ,PCB of single, Double and Multi-layers, High frequency PCB ,etc 6) Max. finished board size: Single & Double Layer:450mm*650mm Multilayer:450*500mm 7) Min. drilled hole size: 3mil(0.075mm) 8) Min. line width: 3mil(0.075mm) 9) Min. line spacing: 3mil(0.075mm) 10) Solder mask color : Green/yellow/black/white/red/blue 11) Copper thickness in hole: >20.0um (1mil) 12) Shape tolerance: plus or minus 0.13 13) Hole tolerance: PTH: plus or minus 0.076; NPTH: plus or minus 0.05 14) Certificate: UL,ISO9001,ISO14001,SGS,RoHS compliance 15) Special req. Buried and blind vias +controlled impedence +BGA 16) Profiling : Punching ,Routing ,V-CUT, Beveling. Inner: Vacuum packing/Plastic bag Outer: Standard carton.