diff --git a/sf_quality/models/quality.py b/sf_quality/models/quality.py
index 970292b7..b3932481 100644
--- a/sf_quality/models/quality.py
+++ b/sf_quality/models/quality.py
@@ -34,8 +34,8 @@ class QualityCheck(models.Model):
         [("programming", "编程"), ("cutter", "刀具"), ("clamping", "装夹"), ("operate computer", "操机"),
          ("technology", "工艺"), ("customer redrawing", "客户改图")], string="原因")
     detailed_reason = fields.Text('详细原因')
-    machining_drawings = fields.Binary('2D加工图纸', related='workorder_id.machining_drawings')
-    quality_standard = fields.Binary('质检标准', related='workorder_id.quality_standard')
+    machining_drawings = fields.Binary('2D加工图纸', related='product_id.machining_drawings')
+    quality_standard = fields.Binary('质检标准', related='product_id.quality_standard')
 
     operation_id = fields.Many2one('mrp.routing.workcenter', '作业', store=True, compute='_compute_operation_id')
     is_inspect = fields.Boolean('需送检', related='point_id.is_inspect')