The tungsten rod may be divided into 3 types namely sintered tungsten rod, hammered tungsten rod and swage-forged tungsten rod as per processing method, and may be divided into 3 types namely black tungsten rod, bright turned tungsten rod and polished tungsten rod. Since tungsten itself is characterized by high-melting point, high purity, high density and excellent high temperature creep resistance, hammered tungsten rods are extensively applied as the tungsten crucible strutting pieces inside sapphire growth furnaces, electrodes, heating elements, and connecting pieces and supporting and load-bearing bars inside rare-earth high-temperature furnaces. Swage-forged tungsten rods are extensively applied as heating element, automotive contacts, high-power lamp electrodes, etc.