... delivery with high quality 4.20years in Pinted circuit board 1. circuit board clock 2.UL,SGS,ROHS,IS09001,CEC3.Fast ... 4,CEM-1,CEM-3,Hight TG,FR4 Halogen Free,Aluminum material3Board thickness0.2mm-7mm4Max panel size630mm*520mm5Min.drilled hole ... the unremitting efforts, now has a manufacturing multilayer blind, buried hole circuit boards, flexible circuit board (FPC), high-precision impedance, HDI, ...