pcb circuit board processing circular light source pcb circuit board led double-sided batch quick proofing

processing custom: yes item no: 054 brand: leabon model: 054 mechanical rigidity: rigidity number of layers: double-sided base material: copper insulation material: organic resin insulation layer thickness: conventional board flame retardant properties :vo board processing technology: electrolytic foil reinforcement material: glass fiber cloth base.syi