raised ridges let you break rods into sections, saving material and offering precise control compared to ordinary smooth rods. These brazing rods flux coated provide better , stronger bonding, and easier operation for both professionals and DIY users. Engineered from BCuP-5 copper-phosphorus alloy with 15% silver, ensuring low melting point, excellent fluidity, and strong, leak-free joints. Works as silver solder for HVAC, brass brazing rod for plumbing, and brazing rods for steel. Perfect for refrigeration, copper pipe, and welding repairs. Each box contains 42pcs, 10" rods, and portable, trusted by HVAC technicians, plumbers, and welders for soldering, welding, and soldadura projects., Manufacturer: Akfldms