... for PCB, SMT, Package, deliv Golden finger pcb board description:layer:6material:FR4Board thickness: 1.6mmSurface finish:lead ... bonding pad diameter10mil8Max proportion of drilling hole and board thickness1:12.59Max size of finish boar23inch* ... ,PCB assembly,FPC,rigid board,flex board,rigid-flex board,Blind via board,bured via board,single board,double-sided board,multi-layer board.Hasl board,immersion ...