single and double-sided multi-layer pcb circuit board 6 layer gold fr4 48 hours urgent sample size batch processing

processing custom: yes item no: 308 brand name: lingbang model: 308 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