The sanja solar energy, which originated in 2006, has been successfully registered with the trademark office. Since its listing, sengau has adopted the "value model, heat china" as its corporate vision, "good use, good" as its product value, and has dedicated itself to shaping the image of sengao's solar water heater, with its "practicalism" at its core. Since its establishment, sango has fully iso 9001:2008 international quality management system (iqms) certification, 3c mandatory certification, and export of eu ceo certification, which has been certified for several consecutive years by the zhejiang province solar water heat testing centre. It has also been awarded the titles of china's 10-good brands of solar energy quality, china's aaa brand of quality services for china's chinese light and medium products, its brand of quality quality gas testing, and china's good green and green products, all of which are covered by picc. Sango is now a member of the solar association of zheji...