Tungsten has many advantages, such as high melting point, high density, high strength, high hardness, high wear resistance, low thermal expansion coefficient, good corrosion resistance, oxidation resistance and excellent thermal conductivity. It has been widely used in cutting-edge scientific fields, national defense industry and civil industry.

Tetrahydrofuran is a kind of low toxic solvent with high polarity and low boiling point. It is widely used in surface coatings, anticorrosive coatings and film coatings. Its main uses are polytetramethylene ether glycol (PTMEG), polyurethane elastomer and polyurethane artificial leather. It is also used as a solvent in esterification and polymerization to synthesize some hormone drugs in medicine.

Molasses alcohol wastewater is a kind of high-concentration and high-chroma organic wastewater discharged from the alcoholic workshop of sugar factory after fermentation of molasses to produce alcohol. It is a complex and refractory organic wastewater. It contains rich protein and other organic substances. It also contains more inorganic salts such as N, P, K, Ca, Mg and higher concentration of SO₄^2- and so on. Most of the wastewater is acidic, and its chroma is very high, which will cause serious pollution. Water quality, environment, or cause soil acidification and consolidation, crop disease.

Tungsten carbide-copper powder metallurgical composite is a pseudo-alloy composed of tungsten carbide with high melting point, high hardness, high conductivity and high thermal conductivity. Because of its excellent arc erosion resistance, welding resistance, high strength and high hardness, it is widely used as electrical contact materials, resistance welding, EDM and plasma electrode materials, electrothermal alloys and high density alloys. And the heat sink substrates of electronic devices such as computer central processing system, lead frame of large-scale integrated circuits and solid-state microwave tubes.