customized pcb board lead-tin injection board industrial control circuit board professional pcb manufacturer in shenzhen factory

processing custom: yes item no: 019 brand name: lingbang model: 019 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