... , 1.6mm selectable Cu thickness: 2.5OZ Solder mask: PC401, Green oil mask with double side Surface finished process: Immersion Sn Sickscreen: White ... ,Osp,Gold Plating9Copper thickness0.5oz Min.,5.0oz Max10Solder mask colorgreen/black/white/red/blue/yellow11Electronic ComponentHigh precision 0201,0402,0603,fine ... , networking, printer and house controller 2 Layers and 2.5oz PCB with E-Test(PCB board )