Steamed Duck Buns with Tangerine

wheat flour 51.6% , water 24.2% , duck 12.1% , sugar 1.8% , tangerine juice 1.8% , carrot 1.8% , Yam Bean 1.8% , Rice bran oil 1.8% , spirit vinegar 1.5% , spring onion 0.8% , tapioca flour 0.4% , palm oil 0.2% , salt 0.1% , garlic 0.0% , Raising agent 0.0% , yeast 0.0% , soya bean 0.0% , maltodextrin 0.0% , tapioca 0.0% , sucrose 0.0% , corn starch 0.0% , sesame seeds 0.0% , rice syrup 0.0% , white pepper 0.0% , star anise 0.0% , safflower concentrate 0.0% , spirulina concentrate 0.0% , Colour 0.0% , sunflower oil 0.0% , fennel 0.0% , turmeric powder 0.0%