diff --git a/src/main/java/de/avatic/lcc/service/calculation/execution/CalculationExecutionService.java b/src/main/java/de/avatic/lcc/service/calculation/execution/CalculationExecutionService.java
index e1240d1..85e085f 100644
--- a/src/main/java/de/avatic/lcc/service/calculation/execution/CalculationExecutionService.java
+++ b/src/main/java/de/avatic/lcc/service/calculation/execution/CalculationExecutionService.java
@@ -210,7 +210,7 @@ public class CalculationExecutionService {
         destinationCalculationJob.setAnnualCustomCost(customCost.getAnnualCost());
 
         destinationCalculationJob.setAnnualTransportationCost(sections.stream().map(SectionInfo::result).map(CalculationJobRouteSection::getAnnualCost).reduce(BigDecimal.ZERO, BigDecimal::add));
-        destinationCalculationJob.setTransportWeightExceeded(sections.stream().map(SectionInfo::result).anyMatch(CalculationJobRouteSection::isWeightPrice));
+        destinationCalculationJob.setTransportWeightExceeded(sections.stream().map(SectionInfo::result).filter(CalculationJobRouteSection::getMainRun).anyMatch(CalculationJobRouteSection::isWeightPrice));
         destinationCalculationJob.setLayerCount(sections.getFirst().containerResult().getLayer());
         destinationCalculationJob.setLayerStructure(null); //TODO generate layer structure
         destinationCalculationJob.setHuCount(sections.getFirst().containerResult().getHuUnitCount());
diff --git a/src/main/resources/master_data/excel_to_sql_converter_materials.py b/src/main/resources/master_data/excel_to_sql_converter_materials.py
index cb4461c..261270c 100644
--- a/src/main/resources/master_data/excel_to_sql_converter_materials.py
+++ b/src/main/resources/master_data/excel_to_sql_converter_materials.py
@@ -25,16 +25,19 @@ def normalize_part_number(part_number):
     
     # Zu String konvertieren (ohne Float-Konvertierung)
     part_str = str(part_number).strip()
-    
+
+    if len(part_str) > 12:
+        raise Exception("Part number longer than 12 digits. "+part_str)
+
     # Bei rein numerischen Werten: mit führenden Nullen auffüllen
     if part_str.isdigit():
         return part_str.zfill(12)
     else:
         # Bei alphanumerischen Part Numbers: auf 12 Zeichen begrenzen/auffüllen
         if len(part_str) > 12:
-            return part_str[:12]  # Kürzen auf 12 Zeichen
+            raise Exception("Part number longer than 12 digits. "+part_str)
         else:
-            return part_str.ljust(12, '0')  # Mit Nullen am Ende auffüllen
+            return part_str.rjust(12, '0')  # Mit Nullen am Anfang auffüllen
 
 def format_hs_code(hs_code):
     """Formatiert HS Code als 8-stelligen String"""
@@ -94,6 +97,8 @@ def excel_to_sql(excel_file_path, output_sql_path=None):
         sql_statements = []
         sql_statements.append("-- Material Daten Import")
         sql_statements.append("-- Generiert aus Excel-Datei\n")
+
+        existing_materials = set()
         
         for index, row in df.iterrows():
             try:
@@ -102,7 +107,8 @@ def excel_to_sql(excel_file_path, output_sql_path=None):
                 normalized_part_number = normalize_part_number(row['part_number'])
                 name = clean_text(row['description'])
                 hs_code = format_hs_code(row['hs_code'])
-                
+
+         
                 # Überspringe Zeilen ohne Part Number oder Description
                 if not part_number or not name or part_number == 'nan':
                     print(f"Überspringe Zeile {index + 2}: Fehlende Daten")
@@ -112,7 +118,11 @@ def excel_to_sql(excel_file_path, output_sql_path=None):
                 sql = f"""INSERT INTO material (part_number, normalized_part_number, hs_code, name, is_deprecated) 
 VALUES ('{part_number}', '{normalized_part_number}', {hs_code}, '{name}', FALSE);"""
                 
-                sql_statements.append(sql)
+                if not normalized_part_number in existing_materials:
+                    existing_materials.add(normalized_part_number)
+                    sql_statements.append(sql)
+                else:
+                    print(f"Duplikat gefunden: {normalized_part_number}")
                 
             except Exception as e:
                 print(f"Fehler bei Zeile {index + 2}: {e}")
@@ -129,7 +139,7 @@ VALUES ('{part_number}', '{normalized_part_number}', {hs_code}, '{name}', FALSE)
         
         # Auch auf Konsole ausgeben
         print(f"\n--- SQL-Statements ({len(sql_statements) - 2} Datensätze) ---")
-        print(sql_content)
+        #print(sql_content)
         
         return sql_content
         
diff --git a/src/main/resources/master_data/master_data.xlsx b/src/main/resources/master_data/master_data.xlsx
index 3ad1216..e0c57f4 100644
Binary files a/src/main/resources/master_data/master_data.xlsx and b/src/main/resources/master_data/master_data.xlsx differ