04-08-2020

New crown pneumonia impacts the construction situa...

Under the strong leadership of the Party Central Committee and the State Council, the current epidemic prevention and control in my country has achieved important and periodic results, and the econo...

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04-08-2020

From graphite to adamantane, the evolution of man-...

Natural diamonds (also known as "diamonds") are formed by crystallization of carbon hundreds of kilometers (typically at a depth of 150 kilometers to 250 kilometers) under the surface of the earth u...

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03-08-2020

Brief introduction about Sanding belt

Sanding belt is belongs to coated abrasive. Its basic composition is: base material, abrasive and binder.

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31-07-2020

WHO: The second wave or peak may be ushered in

On May 25, local time, WHO held a regular press conference on new coronary pneumonia. The head of WHO's health emergency project, Michael Ryan, said that there has not been a second wave of the outb...

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31-07-2020

New energy vehicles and charging piles ushered in ...

On May 22, the government work report made by Premier Li Keqiang of the State Council clearly proposed "building charging piles and promoting new energy vehicles." The report emphasizes that effecti...

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