Index: ssts-packing/src/main/java/com/forgon/disinfectsystem/packing/service/PackingManagerImpl.java
===================================================================
diff -u -r34897 -r34953
--- ssts-packing/src/main/java/com/forgon/disinfectsystem/packing/service/PackingManagerImpl.java	(.../PackingManagerImpl.java)	(revision 34897)
+++ ssts-packing/src/main/java/com/forgon/disinfectsystem/packing/service/PackingManagerImpl.java	(.../PackingManagerImpl.java)	(revision 34953)
@@ -8771,7 +8771,14 @@
 					if (materialAmount == 0) {
 						throw new RuntimeException("数据异常，请联系管理员！");
 					}
-					String mdKey = "_" + md.getName() + "_" + md.getUnit() + "_" + md.getSpecification();
+					String mdKey = "_" + md.getName() + "_";
+					if(StringUtils.isNotBlank(md.getUnit())){
+						mdKey += md.getUnit();
+					}
+					mdKey += "_";
+					if(StringUtils.isNotBlank(md.getSpecification())){
+						mdKey += md.getSpecification();
+					}
 					for (MaterialErrorDamageDetail detail : result) {
 						if(materialAmount <= 0){
 							break;