wholesale pcb rigid circuit board single-sided flame retardant circuit board fast copy board processing proofing manufacturers custom

processing custom: yes item no: 041 brand: leabon model: 041 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