... :±0.076,NTPH:±0.0514CertificateUL,ISO9001,ISO14001,ROHS,CQC15Profiling PunchingRouting,V-CUT,Beveling16Assembly ServiceProviding OEM service to all sorts of printed ... them. PCB with EING Board, Made of Fr4 Material, CNC + V-cut Outline, and Green Solder Mask