Njira yopangira baji nthawi zambiri imagawidwa kukhala stamping, kufa-casting, hydraulic, corrosion, ndi zina zambiri, zomwe kupondaponda ndi kufa-kuponya ndizofala kwambiri.Kusamalira utoto Njira yopaka utoto imagawidwa mu enamel (cloisonne), enamel yotsanzira, varnish yophika, guluu, kusindikiza, ndi zina.
Werengani zambiri