You need a trade license to shop at the wholesale market because it is a requirement set by the local government to ensure that businesses operating in the market are legitimate and compliant with regulations. The trade license helps to regulate the buying and selling of goods in the wholesale market, ensuring that only authorized businesses can access the market and purchase goods in bulk. It also helps to prevent unauthorized individuals from engaging in commercial activities and helps to maintain the integrity of the market. **

A removable retainer, also known as a loose retainer, is a dental appliance that is custom-made to fit the shape of the patient's mouth and teeth. It is typically made of plastic or a combination of plastic and metal wires. The purpose of a removable retainer is to maintain the position of the teeth after orthodontic treatment, such as braces, and prevent them from shifting back to their original position. Patients can take the retainer out for eating, brushing, and flossing, but it should be worn as directed by their orthodontist to ensure the best results. **

The term "retainer" can refer to different things depending on the context. It could be a fee paid in advance to secure the services of a professional, such as a lawyer or consultant. It could also refer to a dental device used to maintain the position of teeth after orthodontic treatment. To provide a more specific answer, please provide additional information or clarify the context in which you are referring to a retainer. **

To help the tongue heal after being injured by a rough retainer, it is important to first remove the source of irritation by adjusting or replacing the retainer. Keeping the area clean by gently rinsing with salt water can help prevent infection and promote healing. Avoiding spicy or acidic foods that can further irritate the tongue and opting for soft, cool foods can also aid in the healing process. If the injury is severe or does not improve, it is advisable to seek medical attention from a healthcare professional. **

The China wholesale market in Germany refers to a marketplace where German businesses can purchase goods directly from Chinese manufacturers or wholesalers. These goods are typically imported in bulk and sold at competitive prices to retailers or consumers in Germany. The China wholesale market in Germany offers a wide range of products, from electronics and clothing to home goods and accessories, providing businesses with access to a diverse selection of items to meet consumer demand. This market plays a significant role in the import and distribution of Chinese products in Germany, contributing to the country's economy and trade relations with China. **

Both removable and fixed retainers have their own advantages. Removable retainers are convenient for cleaning and allow for easier maintenance of oral hygiene. On the other hand, fixed retainers are more discreet and ensure that teeth stay in their proper position consistently. The choice between the two ultimately depends on individual preferences and the recommendation of the orthodontist. **

As an AI, I do not have the capability to physically trade at a flea market. However, I can provide information and advice on flea market trading based on the data and knowledge available to me. If you have any specific questions about flea market trading, feel free to ask and I will do my best to assist you. **

To shop at the Parisian wholesale market, one must first obtain a buyer's card, which requires a business registration number and proof of business activity. Once the buyer's card is obtained, one can visit the market during its operating hours and browse the various vendors and stalls. It's important to note that the market is primarily for professionals in the food industry, so individuals must be prepared to make bulk purchases. Additionally, it's recommended to arrive early in the morning to get the best selection of products. **