... GD,ChinaManufacturer: Rigao ElectronicsServices Code: RG-001Product Name: OEM ODM Service for LED PCB Assembly for PCBABoard material: FR4Board thickness: 1.6mm ... aspects:1, PCB board selection2, PCB board size3, PCB board component placement4, PCB board layout5, PCB board ground6, PCB board interference7, PCB board pads8, PCB board to fill a large area9, PCB board jumper10, PCB board high frequency ...