What grade do Daijiaer jeans belong to?

Middle and high grade. Daijiaer jeans belong to the second-line brand, which is produced in South Korea and sold in China. Very popular with young people, the price is around 150 yuan. They are extremely wear-resistant. Indigo dyed jeans belong to middle and high grade, which is far from the first-line brands such as Levi's and lee. The exact date of birth of jeans is1May 20th, 873. On this day, the Patent and Trademark Office granted two immigrants from Levi Strauss and jakob davies a patent for overalls, which were made of denim, reinforced during sewing, and used brand-new copper buttons at trouser pockets and trousers doors. The idea was put forward by Davis, a tailor in Nevada. Davis was a customer of Strauss, who was then the owner of a small department store. Strauss hopes to use this new style of trousers to meet the requirements of gold miners. Gold diggers often complain that their pants can't hold gold particles.