diff --git a/SGGL/BLL/API/HJGL/APIPipeJointService.cs b/SGGL/BLL/API/HJGL/APIPipeJointService.cs
index 13d578f1..4fae36da 100644
--- a/SGGL/BLL/API/HJGL/APIPipeJointService.cs
+++ b/SGGL/BLL/API/HJGL/APIPipeJointService.cs
@@ -1,4 +1,4 @@
-using Microsoft.SqlServer.Dts.Runtime;
+
 using System;
 using System.Collections.Generic;
 using System.Linq;
diff --git a/SGGL/BLL/API/HJGL/APIPreWeldingDailyService.cs b/SGGL/BLL/API/HJGL/APIPreWeldingDailyService.cs
index 8a60f8f9..a3304616 100644
--- a/SGGL/BLL/API/HJGL/APIPreWeldingDailyService.cs
+++ b/SGGL/BLL/API/HJGL/APIPreWeldingDailyService.cs
@@ -1,4 +1,4 @@
-using Microsoft.SqlServer.Dts.Runtime;
+
 using NPOI.SS.Formula.Functions;
 using System;
 using System.Collections.Generic;
diff --git a/SGGL/BLL/CLGL/TwArrivalStatisticsService.cs b/SGGL/BLL/CLGL/TwArrivalStatisticsService.cs
index 5949c5f7..67bd6034 100644
--- a/SGGL/BLL/CLGL/TwArrivalStatisticsService.cs
+++ b/SGGL/BLL/CLGL/TwArrivalStatisticsService.cs
@@ -1,4 +1,4 @@
-using Microsoft.SqlServer.Dts.Runtime;
+
 using Model;
 using System;
 using System.Collections;
diff --git a/SGGL/BLL/CLGL/TwInOutplanmasterService.cs b/SGGL/BLL/CLGL/TwInOutplanmasterService.cs
index e12cc084..4703223d 100644
--- a/SGGL/BLL/CLGL/TwInOutplanmasterService.cs
+++ b/SGGL/BLL/CLGL/TwInOutplanmasterService.cs
@@ -1,7 +1,6 @@
 using EmitMapper;
 using FineUIPro;
 using Microsoft.Office.Interop.Word;
-using Microsoft.SqlServer.Dts.Runtime;
 using MiniExcelLibs;
 using Model;
 using NPOI.Util;