... and good after sales service double side green color PCB printed circuit board double side simple ENIG immersion gold PCB boardWhat we can ... to components supply, assembly services offer.1-12 layer PCB board,1-2 layer Aluminum base PCB1/3oz- 4oz copper thickness ... board,CEM-1,CEM-3, FR4, FR4 High TG, High CTI, PTFE, Ceramics, Aluminum based etc. double side green color PCB printed circuit board ...