diff --git a/PrecastConcretePlant/PrecastConcretePlantDatabaseImplement/ShopStorage.cs b/PrecastConcretePlant/PrecastConcretePlantDatabaseImplement/ShopStorage.cs
index 13c5cb4..794beb5 100644
--- a/PrecastConcretePlant/PrecastConcretePlantDatabaseImplement/ShopStorage.cs
+++ b/PrecastConcretePlant/PrecastConcretePlantDatabaseImplement/ShopStorage.cs
@@ -103,11 +103,6 @@ namespace PrecastConcretePlantDatabaseImplement
             return shop.GetViewModel;
         }
 
-        public bool HasNeedReinforceds(IReinforcedModel reinforced, int needCount)
-        {
-            throw new NotImplementedException();
-        }
-
         public bool SellReinforceds(IReinforcedModel reinforced, int needCount)
         {
             using var context = new PrecastConcretePlantDatabase();