The yan house, a country-renowned chain of brands, focuses on swallow houses and recruiters. Launched in 2012, yon has 30 provinces and municipalities across the country, with a cumulative total of entity terminals exceeding 600+. The yan house insists on the use of traceable high-quality swallow nests, on the development of research and development to raise industry standards, on the continuous upgrading of product series quality, and on each gram of good swallow nest. With 13 years of experience in food development and production, a standard production and testing base of 4000 m2 with national sc production qualifications has been set up as a single-stop whole-industry chain-source plant for the collection of r & d centres, quality control centres, raw materials selection, selection of raw materials, standardized water lines, canning production lines, sterile workshops, packaging workshops, etc。