A.O. Smith has always maintained international standards in products, and a large number of engineers in * * * have a great sense of honor and go all out to make innovative products, many of which are original invention patents, air energy, solar energy, gas water heaters, home heating, and now water purification, so as to build a one-stop shop for water system products. A.O Smith's gas water heater, including our domestic heating equipment and domestic water purification equipment, has two major characteristics: it is positioned in the middle and high end, developed for China, and has strong localization.