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

processing custom: yes item no: 168 brand: leabon model: 168 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