... Drill Deviation±0.002” (0.050mm)PTH hole tolerance±0.003” (0.075mm)NPTH hole tolerance±0.002” (0.050mm)Angle of ... Countersink80°,90°,100°,120°PlatingMin. hole size0.0008” Aspect ratio20EtchingTrace width tolerance±20%Min. trace width ... ,G/F plating,carbon…Blind and Buried Vias3+N+3YResin,hole-filling ink,PTHYOthersUL Cert.YISO Cert.ISO9001/ISO14001/RoHS ...