... ,fast delivey 3.Small QTY acceptable PCBA for air cooler ans warmerWe are professional PCBA manufacturer,and we do ... Lead Free Solder(HASL), ENIG (ELectroless Nickel Immersion Gold), OSP, Immersion Silver,Immersion Tin, Immersion Nickel, Hard Gold, OtherCopper Weight0.5OZ-7OZTrace/ ... Jump Scoring, Panel Edge to Edge, CNC*Body GoldHARD*, IMMERSION* (up to 50 MICRON GOLD)Data File FormatGerber 274x with ...