... 1L high tg PCB; 2.good quality,reasonable price; 3.quicker delivery; 4.better logistic service; 5.UL,SGS, ... -Tg FR-4 / Lead free Materials(RoHS Compliant)/CEM-3/CEM-1/AluminiumLayersingle layer,double layer,multi-layer(4-10 ... )Board Thickness0.3mm-3.0mm,+/-0.1mm(tolerance)Copper Thickness1/2OZ-3OZ (35um ... SGS,ISO,ROHS,UL, Welcome to visit WALBOND ! single-sided high tg fr4 pcb