diff --git a/webapp/models/Bag.php b/webapp/models/Bag.php
index 5b7e2fe3..21c865c3 100644
--- a/webapp/models/Bag.php
+++ b/webapp/models/Bag.php
@@ -3,7 +3,7 @@
 namespace models;
 
 require_once('mt/Item.php');
-require_once('mt/ChipQuality.php');
+
 require_once('mt/AttrHelper.php');
 require_once('services/NftService.php');
 
diff --git a/webapp/models/Chip.php b/webapp/models/Chip.php
index 2d53267b..af69e285 100644
--- a/webapp/models/Chip.php
+++ b/webapp/models/Chip.php
@@ -8,13 +8,11 @@ require_once('services/FormulaService.php');
 require_once('services/ContractConfig.php');
 
 require_once('mt/Item.php');
-require_once('mt/ChipAttr.php');
 require_once('mt/EconomyAttribute.php');
 require_once('mt/ChipAttribute.php');
 
 
 use mt;
-use mt\ChipAttr;
 use phpcommon\SqlHelper;
 use services\ContractConfig;
 use services\NftService;
diff --git a/webapp/models/ChipPage.php b/webapp/models/ChipPage.php
index cfb06692..dbd45ca7 100644
--- a/webapp/models/ChipPage.php
+++ b/webapp/models/ChipPage.php
@@ -3,10 +3,8 @@
 
 namespace models;
 require_once('models/Chip.php');
-require_once('mt/ChipAttr.php');
 require_once('services/ChipPageService.php');
 
-use mt\ChipAttr;
 use phpcommon\SqlHelper;
 use services\ChipPageService;