二级分类：

• Barrier Shrink Bag - Fresh Red Meat 
• Non-barrier Shrink Bag-Poultry 
• Shrink Bag - Tuna 
• Shrink Bag - Cheese 
• Shrink Bag 
• Shrink Bag - Taped 
• Shrink Bag - Perforated On Roll
• Shrink Film 