Base material :fr4
Number of layer:6 layer
Min hole.Diameter:0.2mm
Min line space/width : 4mil/4mil
Surface finish: immersion gold/lead free hasl
Thickness of board: 1.6mm
Quality certification: ul&iso9001
Flammability rate: 94v-0
Warp and twist:<=1%.
Quality standard:gb4588.2;gb45bb.4;ipc_600d/aql-ii.
Vacuum
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