Sometimes, the demand for vacuum in enterprise production requires multiple vacuum pumps to be connected in series to form a vacuum unit to meet the requirements. In a stable and reliable vacuum sy...
This series of Roots-type vacuum pumps cannot be used alone. It needs to be used in series with the pre-stage vacuum pump to increase the pumping rate of the pre-stage vacuum pump when the pressure...
The primary objective of a vacuum pump is to generate, maintain, or improve a vacuum state within an enclosed space. By removing air or other gases, the vacuum pump reduces the pressure within the ...
A vacuum pump is a device that generates, improves and maintains a vacuum in an enclosed space by various methods. A vacuum pump can be defined as a device or equipment that uses mechanical, physic...
The Chinese government has spent $14.84 billion on green building projects as it focuses more on reducing building pollution.
It also spent $787 million on green building materials for specially de...
Trucks appear at a container terminal in the port of Qingdao in China’s Shandong province on April 28, 2021, after the tanker A Symphony and the bulk carrier Sea Justice collided outside the ...