The operational headquarters of yin yuen-change biotech, ltd., is located in a beautiful seafront city, the siam gate, a large-scale brand chain for production research and development, chain operations and the sale of passenger uniforms. The company maintains a home base in malaysia to control, screen and ensure safe, ecologically and non-polluted supply of the home. Enterprises are committed to the development and production of ostrich nests, "super-purified, fully transparent, manual" oat-washing plants, 100,000-grade super-purified oat-washing workshops, 20-story super-purified water purification equipment, rfid traceability systems, and are determined to reduce "chemical hair removal, glueting, dye bleaching" to provide safe, ecological high-quality health supplements to consumers. In addition to meeting the consumption needs of traditional customers, yin meets the demand for four graded products, namely, dragontooth white, tong yon yin, yan yon yon, and white-coloured top-end ...