... Availability:Liquid gas flux can be used for torch brazing copper and copper alloy, steel and steel alloy, and stainless steel, ... 8.82 %Hand-operate torch brazing, for brazing thick wall copper tube and copper alloy, iron with iron. Suitable for steel furniture, heating ... etc.5kg/drum4drams/cartonFB405 L0.8906.75-7.10%Brazing copper and copper alloy with steel, stainless, and another alloys. Suitable ...