What is boron nitride?Boron nitride is typically black, brownish or dark red crystals with sphalerite framework and excellent thermal conductivity. Its hardness is second only to ruby, a superhard product frequently used as tool materials and abrasiv…
Tin disulfide is an inorganic compound with a chemical formula of SnS2. It is a yellow hexagonal flake with a CdI2 crystal structure. It is hardly soluble in water.…
Features,Part Name, and Marking of the roller bearing Theroller bearing used in a rolling mill is limited in its dimensions by the rollneck diameter and minimum roll diameter. The roller bearing is so designed thatits load rating may be as large as p…
iPhone13 series wireless charging coil or will be larger Apple plans to add a "bigger" wireless charging coil to the iPhone 13 series this year, which may pave the way for reverse wireless charging. In addition, Apple may plan to provide re...…