Sn60Pb40, Sn63Pb37, Sn55Pb45, Sn50Pb50, Sn45Pb55, Sn40Pb60, Sn35Pb65, Sn30Pb70, Sn25P75 It accords with RA Grade standard of GB/T3131-2001 Standard; it is widely used in capacitor manufacturing, directly realizing soft soldering connection on the galvanized coating and gold alloy coating on the head face of capacitor, and suitable for braze welding of metal base which is hard to weld, such as nickel plating part, galvanized part, Dumet wire, and copper, etc; and it is of high soldering speed, brightness, nice appearance, and reliable joint quality, etc. |