The kitchen sink, in its most basic form, was a stone with a hollow that held water. The kitchen sink did not leave the scullery for the proper kitchen until the 20th century. It was made up of materials that were readily available, such as local stones, nickel silver, nickel, copper, silicon, manganese, iron, carbon, stainless steel, ceramic and fire clay. Buy a double kitchen sink for your kitchen. Read this article to know where to buy a double sink.