1.high precision 2.FR-4 base material 3.Lead Free ... fr4 pcb,fr2 pcb,fr1 pcb,cem1 pcb,cem3 pcb,aluminum pcb,etc.General Specifications Capability ArticleDescriptionCapabilitySizeMax.Finshed Size20.9” ... ) Aspect ratio 20(5:1) Solder Mask Color green,light green,white,black,dark brown,yellow,red,blue Min. solder ... pcb,kindly contact me for more details! 1.6MM Thickness ,LED car light,FR4 Single Sided PCB