... 1.UL,RoHS,SGS,ISO T/S16949,IPC Approved; 2.High Quality With Low Cost. 3.Quick turn, OEM/ ODM Service. PCB ... FILE and DRILLING FILE, PROTEL SERIES, PADS2000 SERIES, Powerpcb SERIES, ODB++20Special technological requirementBlind & Buried Vias and High Thickness copper21Thickness of Copper0.5-14oz ...