In 1792, the Swedish chemist Elm used a mixture of charcoal and molybdic acid blended with linseed oil and burned in a sealed manner to obtain molybdenum. Because metallic molybdenum has the advantages of high strength, high melting point, corrosion resistance, and wear resistance
China has the largest tungsten reserve and tungsten output whose reserve are four times of other countries in the world, tungsten ore was found early 10th century and was called "heavy stones" at that time.
Among all refractory metals, molybdenum is the most commonly used metal. When made into an alloy, it has extremely high resistance to high temperatures and creep, making it extremely resistant to corrosion.
Tungsten alloy swaging rods are tungsten alloy products manufactured by forging tungsten alloy rods. After a series of thermomechanical treatments, this kind of bar can greatly improve its mechanical properties and is widely used in military, transportation, medical and other fields.