... delivery 4.UL,ISO9001, pcb board manufacturer/pcb board factory 1.Number of Layer: 1 to 28 layers. 2.Base Material: FR-4, ... silkscreen: Green, White, Black, Blue, yellow, Red etc. 4.Surface Finish: Lead Free HAL, HAL, Flash Gold, Immersion ... 6.over 10 years experences engineers in PCB & PCB assemblies 8 Layers Immersion Gold Board / PCB XJYPCB MachinesXJYPCB Production: ( function(){ var aBigImageSrc ...