double-sided pcb circuit board manufacturer batch processing custom double-sided circuit board production copy board proofing

processing custom: yes item no: 178 brand: leabon model: 178 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