12" brazing rod for use with oxygen torch kit and high temperature fuel torches. No. PC: Copper phosphorus rods, used to braze copper and bronze, may be used to seal copper pipes in plumbing applications without draining the water. No. WB: Bronze flux-coated rods, most versatile and will provide the strongest joint, use to braze copper, bronze, galvanized iron or steel, brass, stainless and chrome-plate. No. NS: Nickel-silver flux-coated rods, braze steel, stainless steel, galvanized iron or steel, bronze and chrome plate, slightly lower melting temperature than bronze brazing rods. No. AL: Aluminum soldering rods, use to join and repair aluminum objects.