... of Origin: Zhejiang, China (Mainland) Brand Name: ctpcb Model Number: radio pcb Number of Layers: 4layer Base Material: enig Copper Thickness ... 0.2mm Min. Line Spacing: 0.2mm Surface Finishing: OEM Radio pcb Color: green Shipping: DHL UPS TNT Fedex DHL ... ISO9001,SGS,UL,IPC,RoHS Testing Service: AOI Usage: electronic Radio pcb PCB Assembly process: ICT PCB Assembly Application: Industrial Control