second-line brand. COTTO Gaotao Sanitary Ware belongs to the national second-line brand, although it is not as loud as the first-line brand in word of mouth, but it belongs to the leader of the same brand, so the market prospect of joining this brand is quite broad now. Gaotao Sanitary Ware, established in 1994, is located in the hometown of the great Sun Yat-sen..