HSN Code 8311 refers to "Wire, rods, tubes, plates, electrodes and similar products, of base metal or of metal carbides, coated or cored with flux material, of a kind used for soldering, brazing, welding or deposition of metal or of metal carbides; wire and rods, of agglomerated base metal powder, used for metal spraying." This classification code is essential for identifying welding and soldering materials for import/export purposes based on their nature, composition, and intended use. Common products under HSN Code 8311 include welding rods, soldering wires, brazing rods, and metal spraying wires. Additionally, the GST rate for these products under this code supports accurate trade compliance.