Featured ManufacturingSON impounds substandard roofing sheets worth N500m in ImoBy Abisola THOMPSONSeptember 4, 2019 by By Abisola THOMPSONSeptember 4, 20190586 The Standards Organisation of Nigeria (SON) has impounded galvanised roofing sheets and aluminium coils worth about N500 million in two warehouses in Owerri and Okigwe,
