Founded in 1917, the Roca brand entered the field of bathroom manufacturing in 1929 by producing bathtubs, and is now the world's largest sanitary ware group company. The business covers 135 countries and regions around the world, and the world's top bathroom brand Laufen is under the umbrella of Roca. According to incomplete statistics, in the past five years, it has won a total of 40 international design awards, including IF, Red Dot, Wallpaper magazine, and Industrial Design Association. Roca bathtub materials include steel plate, acrylic and cast iron, and its cast iron glazed bathtub is made of titanium glaze, which is whiter and shiny than other porcelain glazes and does not contain lead, and is one of the few bathroom brands in the industry that uses titanium glaze in cast iron bathtubs. Roca bathtubs are covered from low price to high-end, and its jacuzzi has performed well in Sina Leju and other evaluations, but its brand is good at publicity, and the after-sales response is generally poor, so the purchase should be carefully selected.