Chenfei Electronic Tech Co.,Ltd a professional PCB supplier which focused on high quality PCB manufacturing service,Website:http://www.polariscircuit.com,PCB prototype,small batches and volume PCB production.The main PCB types are: FR4 PCB,aluminum PCB,High Frequency PCB,HDI PCB,Rigid-flex PCB and flex PCB.It’s available to finish the 2 layers PCB within 48 hours and multilayer PCB within 3-4 days.