Congo, Dem. Rep.imports of Mercuric oxide primary cells & batteries of an was $1.38K . Congo, Dem. Rep.imported Mercuric oxide primary cells & batteries of an from China ($1.38K )Congo, Dem. Rep.imports of Mercuric oxide primary cells & batteries of an was $1.38K . Congo, Dem. Rep.imported Mercuric oxide primary cells & batteries of an from China ($1.38K ).Mercuric oxide primary cells & batteries of an exports by country in 2022