Stamped products are most common, which is associated with a low price. Such sinks are made from a solid sheet of metal. The minus is that their depth does not exceed 15 cm. Another thing is welded products that have a higher quality and price. The base and cup of such a sink are made separately and then welded. This allows you to get products of any shape and depth. And one more plus is the thicker walls that drown out the noise from the water.
