Double-sided non-bright tin coated,with tin film thickness of 0.5 - 1 microns, nickel film thickness of 0.5 - 1 microns, and neutral salt spray for 48H, good for soldererability. Material: 304，0.1*45 Black nickel plated on double-sided thickness, salt spray for 72H, color difference of 54 - 59.China Super Hardness Steel Strip Slitter Knife for Acid Milling Sheet Slitting, Find details about China Slitter Knives, Slitter Blade from Super Hardness Steel Strip Slitter Knife for Acid Milling Sheet Slitting - Maan′sha.Aluminium Slit Coil,Aluminum slitting uminum Technical Specifications Thickness:mm Width:mm Temper: O, H24, H18, H111, H14 Material (alloy): 1100, 1050, 1070, 3003, 3004, 3105, 3005, 5005, 5052, 5754 Aluminium Slit Coil Applications: Aluminum sheet are widely used for aluminum and plasticposite board,aluminum and plastic pipe,and The line works periodically depending on specifications given by the operator or on the strip length in the entry coil. The cutting line specification is set in following ranges: Slitting applications for metal coils: Strip width. 500–1600 mm. Strip thickness. 0,4–6,0 mm.