diff --git a/src/BarCode.Web.Repositories/SerialNumbersRepositories.cs b/src/BarCode.Web.Repositories/SerialNumbersRepositories.cs
index d6e4679..b7ed573 100644
--- a/src/BarCode.Web.Repositories/SerialNumbersRepositories.cs
+++ b/src/BarCode.Web.Repositories/SerialNumbersRepositories.cs
@@ -358,8 +358,8 @@ namespace BarCode.Web.Repositories
             int total = await query.CountAsync();
             var list = await query.Select(s => new SerialNumberInfoResponse()
             {
-                Specifications = s.sg.Specifications,//s.serial.Specifications,// _erpBasicDataExtendService.GetMaterialSpecifications(materials, s.serial.MaterialNumber),
-                Old_Specifications = _erpBasicDataExtendService.GetMaterialSpecifications(materials, s.serial.Old_MaterialNumber == null ? "" : s.serial.Old_MaterialNumber),
+                Specifications = s.sg.Specifications,// _erpBasicDataExtendService.GetMaterialSpecifications(materials, s.serial.MaterialNumber),
+                Old_Specifications = s.serial.old_Specifications==null?"": s.serial.old_Specifications,//_erpBasicDataExtendService.GetMaterialSpecifications(materials, s.serial.Old_MaterialNumber == null ? "" : s.serial.Old_MaterialNumber),
                 MaterialNumber = s.serial.MaterialNumber,
                 MaterialName = s.sg.MaterialName,// _erpBasicDataExtendService.GetMaterialName(materials, s.serial.MaterialNumber),
                 BarCode = s.sg.BarCode,// _erpBasicDataExtendService.GetMaterialBarCode(materials, s.serial.MaterialNumber),
@@ -497,7 +497,7 @@ namespace BarCode.Web.Repositories
             var list = await query.Select(s => new SerialNumberInfoResponse2()
             {
                 Specifications = s.sg.Specifications,//_erpBasicDataExtendService.GetMaterialSpecifications(materials, s.serial.MaterialNumber),
-                Old_Specifications = _erpBasicDataExtendService.GetMaterialSpecifications(materials, s.serial.Old_MaterialNumber == null ? "" : s.serial.Old_MaterialNumber),
+                Old_Specifications = s.serial.old_Specifications == null ? "" : s.serial.old_Specifications,//_erpBasicDataExtendService.GetMaterialSpecifications(materials, s.serial.Old_MaterialNumber == null ? "" : s.serial.Old_MaterialNumber),
                 MaterialNumber = s.serial.MaterialNumber,
                 MaterialName = s.sg.MaterialName,// _erpBasicDataExtendService.GetMaterialName(materials, s.serial.MaterialNumber),
                 BarCode = s.sg.BarCode,//_erpBasicDataExtendService.GetMaterialBarCode(materials, s.serial.MaterialNumber),