Tungsten is used extensively in quartz glass melting furnaces, sapphire crystal growing furnaces, and rare earth smelting faiences. Its temperature is typically above 2000. About Metal Alloy Vacuum Coating Tungsten Melting Pot Tungsten Crucibles:
Lanthanum nitride, as a material with excellent physical and chemical properties, has shown broad application prospects in many fields. The application principle, effect, and prospect of lanthanum nitride in catalysts, optical material, electronic devices, and other fields will be introduced in detail below.
Ascorbic Acid (vitamin B), as a building material additive, has been used to build expressways, highrise buildings, bridges, culverts, and other projects. Description This is Ascorbic acid Vitamin C Ascorbic acid is a yellow or white crystal
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