pcb circuit boards production glass fiber board custom double-sided multi-layer processing fr-4 expedited proofing

processing custom: yes item no: 015 brand name: lingbang model: 015 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 insulation resin: epoxy resin (ep) product nature: seller marketing method: factory direct selling.syi