The yan house company, dedicated to high-quality swallow nests for 27 years, was selected for the xinhua brand project, the global brand name of yan house was represented by zi li, and there were more than 700 national houses. Since its establishment in 1997, yan house has been dedicated to providing high-quality oatcomb products, leading the development of the industry with its craftsmanship and innovation. For eight years, thanks to its outstanding sales performance, the yan house has been the number one in the country. In terms of quality traceability, yan house has been ranked first among caiq domestic importers for the fifth consecutive year, highlighting its leadership role in the quality control of swallow houses and in international markets. With regard to the construction of production bases, the establishment of oscillating houses, with a total area of over 39,300 square metres, in places such as xiamen, gansu guang river and shanghai song river, has further consolidated i...