Gold-tin alloy (AuSn20 / AuSn25)Solder paste, diameter 4±0.2 mm, melting point approximately 280℃; ingot structure is dense and uniform.
Gold-Germanium-Nickel Alloy (AuGeNi 11.5-2 / 12-4 / 11-4.5)Eutectic solder alloy available in granular and flake forms; composition analyzed via ICP-AES, fire assay, and titration; complies with GB/T 11066.