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Contact SupplierWe offer 4-layer Pcb.
board finished thickness:0.5-6.0mm
material: fr-4
surface finish/treatment:osp
product range:pcb of four layers
max. finished board size:450*500mm
min. drilled hole size:3mil(0.075mm)
min. line width:3mil(0.075mm)
min. line spacing: 3mil(0.075mm)
solder mask color :green/yellow/black/white/red/blue
copper thickness in hole: >20.0um (1mil)
shape tolerance:plus or minus 0.13
hole tolerance:pth: plus or minus 0.076; npth: plus or minus 0.05
certificate:ul,iso9001,iso14001,sgs,rohs compliance
special req.buried and blind vias +controlled impedence +bga
profiling :punching ,routing ,v-cut, beveling
packing:inner: vacuum packing/plastic bag
outer: standard carton packing