Yakananga Nhema 19 mvura, kana rimwe zita PERGASOL BLACK G, idhayi yekugadzira iyo ndeye dema kabhodhi dhayi.Yakagadzirwa ne-direct black G powder.Inowanzoshandiswa muindasitiri yemachira kudhaya machira, kunyanya donje, makushe, uye sirika.Liquid dema yeblack cardboard ndeyakadzika dema ruvara ine yakasimba color fastness properties.