Sif have led the way in gas welding & brazing technology since 1925 and still rule the roost. Sifbronze no. 1 & no. 11 are Sif's signature products. Sifbronze no. 1 is a low temperature brazing rod suitable for welding steel cast iron & copper used in conjunction with Sif flux, whilst Sifbronze no. 11 is a gas welding rod suitable for mild steel & wrought iron. Sisteel A15 is a high quality TIG welding filler rod for mild steel.