Other than mosquito nets, what else is unique to China and not available abroad?

In addition to mosquito nets, China also had the following unique items: Mahjong: Mahjong is a popular Chinese board game with unique rules and gameplay. It is an important part of Chinese culture. 2. Taijiquan: Taijiquan is an ancient martial arts event with a unique style and technique, known as the treasure of Chinese culture. The Great Wall: The Great Wall is an ancient Chinese military fortification. It is the longest city wall in the world and one of the symbols of China. 4. Zongzi: Zongzi is a traditional Chinese food, usually made of glutinous rice, meat, eggs, seafood and other ingredients. It has a unique taste and cooking method. Yuanxiao: Yuanxiao is a traditional Chinese food usually eaten during the Lantern Festival. It is made of glutinous rice flour and filled with various fillings. It is an important part of Chinese culture. Dumplings: Dumplings are a traditional Chinese food made of flour and filled with meat, vegetables and other ingredients. It is an important part of Chinese culture. Red Envelope: Red Envelope is a traditional Chinese etiquette used on New Year's and wedding occasions. It usually contains cash and words of blessing. These items are an important part of Chinese culture. Due to the uniqueness and variety of Chinese culture, these things do not exist abroad.