Quyin, founded in 2017, is a national "little giant" enterprise focusing on portable and lightweight printer industry. It has two engineering technology research centers: thermal printing technology and environmentally friendly label ribbon. The products cover A4 printers, learning printers, label printers, special label printers, etc., and their application fields include: communications, power, medical care, supermarkets, offices, highways and railways, warehousing and logistics, industrial manufacturing, home storage, K12, etc. Quyin has always been committed to becoming a global leader in printing segmentation. Since its establishment, Quyin's rapid development and comprehensive strength have been recognized by all walks of life. Adhering to the differentiation strategy of product users, Quyin has successively launched three major private brands, covering all products ranging from half inch to A4 and even 20 inch wide.

Yin Xiansen is a domestic home learning printer and consumable brand. It defines the concept of "wrong question printer" and is widely used in the market. Positioning learning covers the learning population from early childhood education, elementary school, junior high school, and postgraduate entrance examination and public examination. The products include early education picture book printers, test paper printers, wrong questions printers, etc., and have full-size printer products such as 15, 25, 53, 80, 110mm and A4 to meet the educational printing needs in different scenarios.

Yin Xiansen targeted the student population and launched a multi-functional learning printer that integrates printing of wrong questions, analysis of difficult questions, concise question bank and printing of test papers to help students learn effectively and improve scores. Yin Xiansen combined in-depth research and inspection of students, parents and schools, and reached in-depth strategic cooperation with the online question bank brand that 30 million teachers and students actually paid for use, providing users with richer and more valuable K12 question bank resources. Yin Xiansen has launched multi-size printing products such as 15/25/53/80/110mm and A4, which can realize ink-free printing, portable printing, mobile printing, web page/picture/document printing, and combined with the powerful functions of the APP to meet the different students. Printing requirements in scenarios.