1.Multi-Layer PCB 2.UL,SGS,ROHS Certificated 3.OEM&ODM are welcome 4.test via AOL,X-ray 5.6 ... -free* One stop service for PCB design, PCB layout, PCB manufacture, components purchasing, PCB assembly, test, packing and PCB delivery Technical Specification For PCB Number of Layer1,2,4 ...