Founded in 1991, the qin home office's cold-skin chain is located in the town of shangxi, a well-known city of shangxi province, in the district of the country's food and oil base, which is home to the country's north-west sand-skin country. Since 2001, the store has had its students from all over the country studying the technique of cold-skin chains in the qin diaspora. More than 500 participants have been trained. Many of them are already doing good business. The more they are doing business, the better they are, the more the owners of the cold-skin shop are looking for their masters to learn the technique of pasta. Today, master xu has become a technical adviser to hundreds of cold-skin shops, providing them with technical guidance for specialized cold-skin production techniques. In order to give back to society, the store wants to give more committed men better, faster, more accurate access to the production technology, the qin home office's cold-skin chain, the thawing methods...