TSUGAMI belongs to the brand of Hilk, Hilk is a smart toilet manufacturing factory, headquartered in Quzhou, Zhejiang. In 2011 it began to research, develop, produce, and sell smart toilets, with an internationally leading and 4.0-standard smart toilet base with a total site area of over 180 mu. Guangzhou, Fushan and other places have established multiple regional operation service centers and marketing centers in major cities throughout the country, with over 1500 employees, including more than 150 engineers. After 30 years of development, Hilk has expanded from a leading precision electronic manufacturing to an intelligent bathroom, becoming an industry-leading professional intelligent toilet maker and brand maker that integrates scientific research, production, sale and service, and is recognized as a "national high-tech enterprise" and a standard of the Intelligent Toilet Association. In smart bath, Hilk has number of patented technologies and is at the leading international level. In smart bath, Hilk has a number of patented technologies and is at the leading international level. As a result, Hilk has been recognized as a leading global sanitary enterprise and brand, has established close strategic partnerships with many well-known international and domestic enterprises, and is known in the industry as a "smart toilet expert". In the future, Hilk will commit to the Intelligent Technology Enabling Industry to become the leading smart toilet brand in the industry.