41. Sodium tetrafluoroborate is used in some fluxes used for brazing and to produce Boron trifluoride. 42. The pin tip, brazing alloy, flux and lug cool into a homogenous unit. 43. The highly curved frames had brazed bronze fittings and early models had front baskets fitted. 44. It began as a Portuguese company supplying brazing materials, silver and copper brazing solders. 45. It began as a Portuguese company supplying brazing materials, silver and copper brazing solders. 46. The CuproBraze technology uses brazing instead of soldering to join copper and brass radiator components. 47. Fixing pliers, and indeed, all tools, by welding or brazing is not recommended. 48. That daisy chain of disgrace is now brazed onto the Senate's swiftly sinking reputation. 49. The outer structure was made of stainless steel brazed honeycomb brazed between steel alloy face sheets. 50. The outer structure was made of stainless steel brazed honeycomb brazed between steel alloy face sheets.