This silver solder is suitable for brazing of copper,copper alloys ,nickel alloys,carbon steel and stainless steel etc. Silver Solder:The silver solder we suppled with good quality and competitive priceLong service life,Good to use Specification:Dia 0.4,0.5,0.6,0.7,0.8,0.9,1.0, 1.0--3.0mm . Length: 200,300,400,500mm. The customized silver solder is up to your requirements .