WearefactoryspecializinginthemanufactureTantalum and Niobium prodcuts fortwelve years , The detail of tantalum plate we can provide as follows: Tantalum plates, tantalum sheets (ASTM B708-98 R05200) 0. 2mm up to 1. 0 mm Thickness x Width up to 600mm max. X Length, 1. 0mm up to 20mm Thickness x Width up to 1000mm max. X Length; Tantalum foil (ASTM B708-98 R05200) 0. 05mm Thickness x Width up to 120mm max. X Length; The Special sizes are available upon customers requirement.