diff --git a/sf_manufacturing/models/stock.py b/sf_manufacturing/models/stock.py
index 4bf7cc72..d902997f 100644
--- a/sf_manufacturing/models/stock.py
+++ b/sf_manufacturing/models/stock.py
@@ -468,8 +468,7 @@ class ProductionLot(models.Model):
 class StockPicking(models.Model):
     _inherit = 'stock.picking'
 
-    # workorder_in_id = fields.One2many('mrp.workorder', 'picking_in_id')
-    # workorder_out_id = fields.One2many('mrp.workorder', 'picking_out_id')
+    surface_technics_parameters_id = fields.Many2one('sf.production.process.parameter', string="表面工艺可选参数")
 
     # 设置外协出入单的名称
     def _get_name_Res(self, rescode):