2-layer PCB with 2.5OZ Copper thickness Material: FR4 ... 5OZ Solder mask: PC401, Green oil mask with double side Surface finished process: Immersion Sn Sickscreen: ... :±0.0515CertificateUL,ISO9001,ISO14001,ISO/TS16949,ROHS16Profiling punchingRouting,V-CUT,Beveling17Staff Experienced technical staff 18Products experience rangeindustrial, ... house controller 2 Layers and 2.5oz PCB with E-Test(PCB board )