Layer count: 8 Material: R4350B + FR4 ,1.6mm, , 1 OZ for all layer Minimum tack: 8mil Minimum space(gap): 8mil Minimum hole: 0.30mm Surface finished: ENIG( Au 2 U") Panel size: 120*113mm/1up Characteristics: Rogers + FR4 multilayer PCB www.hiquality-pcb.com