Union Circuits is a Professional Heavy Copper PCB Manufacturer located in Shenzhen,Website:http://www.unioncircuits.com, China, we can make up to 20OZ thick copper PCBs, most of them used for power supply, automotive, communication, power switch, with Lead-free HASL, Immersion Gold/ Silver/ Tin surface finishes.Key Specification  Layer Count2~16MaterialFR-4(Tg130), FR-4(Tg17)Finished Thickness1.6~6.5mmFinished Outer Cu Thickness3/3OZ, 4/4OZ UP TO 20/20OZFinished Inner Cu Thickness3/3OZ, 4/4OZ, 6/6OZ, 8/8OZSurface FinishLead-free HASL, Immersion Gold/ Tin/ SilverSoldermaskGreen, White, BlackSilkscreenWhite, BlackPanel SizeMinimum 30x50mm, Maximum 600x1000mmAttention: "These are the basic specifications we gonna to need for your Printed Circuit Board fabrication, if you need a quick quote or going to order soon, to save time please kindly provide all the fabrication details to us, of course if there were any other special requirements or details out of this specification, please also comment so we can consider it in our quotation."           --From Union Circuits Engineering dept.Product DetailsMOQ1 PieceProduction Lead Time5~10 Working Days Quick turn, 6~15 Working Days mass productionMin. Drill Hole Size0.5mmMin. Trace Width/Spacing6/6milData FormatGerber RS-274-D/X, .pcb, .pcbdoc, .cam, ODB++, CADE-Test100% E-test(cost included in the Unit Price, NO extra charge)CertificationsUL, CUL, ISO9000, ISO14001, TS16949.StandardIPC-A-600H Class 2(default), Class 3 (base on request)ApplicationPower supply, Automotive, Communication, Heat Dissipation, Power switch…PackingInner vacuum + foam, Outer carton boxShippingDHL(default), UPS, TNT, FedEx, EXW, FCA/FOB HongKong, By SeaPaymentT/T, PayPal, Western Union (USD, EUR)