... Special Steel Trading Co., Ltd.Stainless Steel Steel Sheet AISI 420/UNS G42000/JIS SUS 4720J1DIN X20Cr13 Steel ... Sheet Dimensions:1, Width: 12mm~250mm Delivery Condition: hot-rolling, ... Characters:1,high hardness after quenching2,errosion resistant steel Application: engine blade for plane, cartridge receiver, fasteners, combustion chamber, aviation ...