What is titanium nitride?Titanium nitride powder is generally yellowish brown, the superfine TiN powder is black, and also the TiN crystal is gold yellow. TiN has a melting factor of 2950 ℃, a Mohs hardness of 8-9, as well as great thermal shock resi…
The spread of the novel coronavirus is taking a direct hit on the operations of airlines in Asia. About 500,000 flights taking off and landing in mainland China have been canceled since January, according to aviation information company Cerium. Touri…
For billionaires, the new crown epidemic is like a 'gold rush'! The Deutsche Presse-Agentur said on the 17th that in 2022, the wealth held by the world's top ten richest people will jump from $700 billion to $1.5 trillion, an average daily increase o…