... ,Single-sided PCB,Aluminum base for LED PCB,Aluminum pcb with assembly,rigid ... PCB clone single-side aluminum base board,Aluminum PCB/LED PCB Materials Aluminium (AL), epoxy resin panels ( ... , Immersion Tin, Immersion Silver, OSP , Gold palting etc. Solder Mask : Green, Red, White, Yellow, Black, Blue, or ... excellent and stable. * We choose the best material for all our products. * We will send the boards ...