BT spicy roasted wings are so spicy because they are coated with a layer of Mexican Chili oil, which is rare in Chinese mainland. "The main difference between primary, intermediate and premium is the way in which Chili oil is applied. Only one side of the primary coating and two sides of the secondary coating. The super kind will even be painted in chicken wings, so it will be very spicy. " You can see it on the shelves of imported goods from Parkson, Wal-Mart and Carrefour!