diff --git a/sf_base/commons/common.py b/sf_base/commons/common.py
index f99d6563..d146ce3c 100644
--- a/sf_base/commons/common.py
+++ b/sf_base/commons/common.py
@@ -4,15 +4,10 @@ import time
 import hashlib
 
 
-
-
-
 class Common(models.Model):
     _name = 'sf.sync.common'
     _description = u'公用类'
 
-
-
     def get_headers(self,token, secret_key):
         '''
         获取requests中的heardes参数
diff --git a/sf_manufacturing/models/mrp_workorder.py b/sf_manufacturing/models/mrp_workorder.py
index 7cba36b0..2922ee3e 100644
--- a/sf_manufacturing/models/mrp_workorder.py
+++ b/sf_manufacturing/models/mrp_workorder.py
@@ -1,6 +1,7 @@
 from datetime import datetime
 from dateutil.relativedelta import relativedelta
 from odoo import api, fields, models, SUPERUSER_ID, _
+from odoo.addons.sf_base.commons.common import Common
 
 
 class ResMrpWorkOrder(models.Model):