What grade does Buyangmen belong to?

Buyang door industry belongs to high grade. Buyang Door Industry, founded in 1998, is a leading enterprise in the national security door industry, with sales leading for six consecutive years. The quality and performance of anti-theft safety doors have been widely recognized and have a high reputation in the market. Buyang door industry is also very strong in technical strength and innovation ability, with a number of patents and core technologies, and is a leader in the security door industry. Buyangmen is a high-grade brand, which can provide high-quality guarantee for families and enterprises.