Interior Space and Exhibition Design Landsea Crystal Sales Office by Yongna Sheng Landsea Crystal is a sales office interior located in the Xinzhuang area of Tianjin, China, with a total area of 1800 square meters. The concept is based on the water culture of the Haihe River, and the shape, meaning and name of a sailing boat guide the layout and the decorative details. Leather, luxury stone, solid wood, metal and glass are the main materials. Luxury stone is used for table surfaces, while large solid wood and metal pieces serve as art features. Italian furniture is combined with Chinese references to give the space a calm and elegant character.