The main properties of tungsten crucible include high melting point, high temperature resistance, excellent corrosion resistance, good thermal shock stability, and high strength and stability.

Tungsten crucible is a kind of high-temperature container made of tungsten (W) or tungsten-based alloy as the main material, which is widely used in metallurgy, materials science, semiconductor, aerospace and other fields that require ultra-high temperature treatment. 

Like ammonium metatungstate (AMT), sodium metatungstate is an important compound of the transition metal tungsten. It is a polymeric metatungstate formed by acidifying an isotungstate solution, exhibiting excellent physicochemical properties and widely used in density separation studies in geology, soil science, and marine biology.

Like tungsten bars, tungsten sheet is a typical product of the transition metal tungsten, sharing highly similar thermal, mechanical, chemical, and electrical properties, and is widely used in industries such as machinery and semiconductors.

As a typical tungstic acid, yellow tungstic acid generally refers to a transition metal compound with a 1:1 ratio of tungsten trioxide (WO₃) to water (H₂O). It consists of one tungsten atom, two hydrogen atoms, and four oxygen atoms, forming a pale yellow crystal or powder. It is a hydrated tungsten oxide, with the English name Yellow Tungstic Acid, a molecular formula of H₂WO₄ or WO₃·H₂O, and a molecular weight of 249.86.

Like tungsten monoboride (BW), ditungsten boride (BW₂), tungsten diboride (WB₂), and ditungsten pentaboride (W₂B₅), tungsten tetraboride (WB₄) is an inorganic compound composed of the transition metal tungsten (W) and the non-metal boron (B). It exhibits excellent mechanical and electrical properties, making it valuable for applications in machining and electrode preparation under extreme conditions. Due to varying ratios of tungsten to boron atoms, different tungsten borides have distinct physicochemical properties, production methods, and applications. Below is an overview of WB₄'s basic information.

As an important compound of the rare metal molybdenum, molybdic acid is a colorless triclinic or yellow monoclinic solid powder formed by combining molybdenum trioxide (MoO₃) and water in a specific ratio. It is a hydrated molybdenum oxide composed of hydrogen ions (H⁺), hydroxide ions (OH⁻), and molybdate ions ((MoO₄)²⁻). Its English name is Molybdic Acid, with a molecular formula typically of MoO₃·2H₂O, a molecular weight of 179.97, and a CAS registry number of 7782-91-4.

Solar simulators are critical equipment for the research, development, and quality testing of photovoltaic devices. Their primary function is to accurately replicate the spectral distribution, irradiance intensity, and spatial uniformity of sunlight. As a key component of the simulator's light source system, barium tungsten electrodes play an irreplaceable role in enhancing light source performance and ensuring testing accuracy.

Surgical shadowless lamps are critical devices used in operating rooms to illuminate surgical sites. Their core function is to project light onto the surgical area at specific angles through the reflection and refraction of multiple light sources, preventing shadows caused by the surgeon's head or instruments and providing a clear, uniform surgical field of view. Key requirements for these lamps include high brightness, low heat output, precise color temperature control, and long service life to meet the stringent lighting demands of complex surgical procedures.

Barium tungsten electrodes are made of high-purity tungsten as the main component and are made by doping barium elements or their compounds (such as barium oxide). They are a high-performance cathode material that combines the high melting point and corrosion resistance of tungsten with the low work function characteristics of barium.