Copper, called Tamba , is regarded sacred by the people of the Himalayas and is fashioned into vessels by Tamtas or coppersmiths for daily and ritual use as it is known to have medicinal properties and keeps water pure. Copper sheets are procured from rolling mills in Jagadhari in Haryana and sheet is converted into two half pots which are then joined by a brass solder. The finished vessel is heated till it is red hot and is buried in the pit of rice husk and acid for some time to give shine The rim or mouths are finished by beading and handles are riveted on. The surface is fatigue resisted by peening and the concentric peening acts as ribbing and strengthens the walls. Tibetan and Shaivite culture are reflected in the motifs and forms of the vessels. The tamtas also specialise in another kind of decorative ware called Ganga-Jamuna in which brass and copper are used together. The two metals have different melting points and joining them is a specialised task.