| abstract |
Trough-shaped plastic sanitary article, such as a bathtub, which can be easily produced by first casting an inner layer with a wall thickness of at least 1 mm from a first plastic material between a convex and a first concave shape, after which the first concave shape is removed, the However, the inner layer remains on the convex shape, and an outer layer between the inner layer and a second concave shape is cast from a second plastic material. |