We are the manufacturer correspond to IPC standard Competitive price and fast delivery UL,SGS,ISO9001,RoHS,QS9000,TS16949 Layer:1~ ... -4, CEM-3, Teflon, Aluminum, Rogers, High TgSurface finished:Lead Free HASL,Immersion Gold/Tin/Silver, OSP, Gold Finger Plating, Selective ... .016"0.40mm7Max. Copper Thickness 4oz140μm8Max. Board Thickness 0.189"4.80 mm9Min Board Thickness2L0.008"0.20mm 4L0.016"0 ...