Like cobalt tungstate (CoWO₄) and nickel tungstate (NiWO₄), ferrous tungstate is an inorganic compound composed of a transition metal, a Group VIII element, and a non-metal element, exhibiting excellent physicochemical properties and wide applications in the chemical industry. Note: Iron, cobalt, and nickel, known as iron-series elements, are all from the fourth period and Group VIII, with atomic numbers 26, 27, and 28, respectively. Their properties are similar, and they all display ferromagnetism.

Silicotungstic acid, a key member of the polyoxometalate family, showcases significant application potential in materials science, chemical engineering, and biomedicine due to its unique molecular structure and excellent chemical properties. It is an inorganic compound composed of tungsten, silicon, hydrogen, and oxygen, with the molecular formula H₄[Si(W₃O₁₀)₄]·nH₂O and CAS number 12027-38-2.

Tungsten crucible is a high-temperature resistant vessel made from high-purity tungsten powder (tungsten content >99.95%) through precise powder metallurgy and forming techniques. It maintains structural integrity and functional stability even in high-temperature environments, with its technological level influencing the precision of cutting-edge processes in fields like high-end crystal growth and special material smelting.

In the field of advanced materials, tungsten niobium alloy, a typical refractory metal composite, is gaining prominence as a critical foundational material in strategic sectors such as aerospace and high-end equipment manufacturing.