pcb circuit board manufacturers fast proofing industrial control boards custom tin-sprayed two-sided single-sided

processing custom: yes item no: 172 brand: leabon model: 172 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