Lead-Free 无铅 96.5Sn/3.5Ag 96.5 3.5 221 96.5Sn/3Ag/0.5Cu 96.5 3 0.5 217 95.5Sn/4Ag/0.5Cu 96.5 4 0.5 217 锡球规格如下: Diameters Diameter Tolerance Spheriod Tolerance 0.76mm 30mil ± 0,025mm Within 1.5% 0.65mm 26mil ± 0,025mm Within 1.5% 0.63mm 25mil ± 0,025mm Within 1.5% 0.60mm 24mil ± 0,025mm Within 1.5% 0.55mm 22mil ± 0,02 mm Within 1.5% 0.50mm 20mil ± 0,02 mm Within 1.5% 0.45mm 18mil ± 0,02 mm Within 1.5% 0.40mm 16mil ± 0,01 mm Within 1.5% 0.35mm 14mil ± 0,01 mm Within 1.5% 0.33mm 13mil ± 0,01 mm Within 1.5% 0.30mm 12mil ± 0,01 mm Within 1.5% 0.25mm 10mil ± 0,01 mm Within 1.5% 0.20mm 8mil ± 0,01 mm Within 1.5% 0.10mm 4mil ± 0,01 mm Within 1.5%