Don rukunin gwaji na ENS , kowa yana da damuwa na musamman game da shi, da abin da muke yi shine ƙara buƙatar buƙatun samfurin na kowane abokin ciniki da yawa a cikin ƙasashe da yawa. MECANME Rukunin gwajin yana da ƙirar halayyar & aikin aiki da farashi mai yawa, don ƙarin bayani game da rukunin gwaji na ENTION , don Allah ku ji kyauta don tuntuɓar mu.