The northern nation musical production corporation, established in 1985 (formerly the beijing national instrument plant) with 18. 5 acres of land, 6,000 square metres of construction, 230 employees, 45 technicians and 8 million yuan in fixed assets, is the largest, most diverse and most integrated national musical instrument company in the north of the country, known as the northern nation musical instrument production base, and the hebei province star company. The company, which has more than 400 musical instruments, such as qianqin, hu, biwa, nguyen, kyunghu, panhu, and trishu, has established business relationships in more than 200 large, medium-sized cities, colleges and cultural groups in the country, exported to more than 20 countries and regions, such as europe and the united states of america, japan, which have been well received by their customers and have been rated as a consumer trust unit for years. High-quality brand products in hebei province, with a sales rate of %100, have been growing over the years. Good faith has been the company's purpose for many years, and it has been following a “quality-based, service-to-home” approach. In order to bring it into line with the international community as soon as possible, in 2002 the company, as the first national instrument industry to adopt iso 9001 international certification, introduced a comprehensive quality system management that allowed for effective control of all stages of production and ensured a steady improvement in product quality. In order to achieve a quality approach that seeks to perfect the dedication of people's musical excellence, the company has strengthened its communication and contacts with performing professionals, asking them for information and learning about the content of musical instruments and improving the inherent quality of musical products. In pursuit of the overall improvement of the sound and sound quality, more than 30 leading performers and more than 30 leading performers were hired as technical consultants for the company, and in 2003 a scientific research base for the two-hu north was set up in association with the chinese association for the voice of the two-hu, setting up a platform for joint research and discussion between producers and performers. Nine first-class prizes were awarded in the 2004 national two-hour production championship, which was appreciated by experts and attracted interest within the community. For more than a decade, thanks to strong support from all levels, the company's employees have worked hard to increase its strength and scale. The national instrument of the moon has become popular with its users, and the company has become the main producer of the national instrument. We will always adhere to the “quality-for-life” approach, constantly improving our work and devoting ourselves to china's national instruments。