wu han

Boiler systems are classified in a variety of ways. They can be classified according to the end use, such as foe heating, power generation or process requirements. Or they can...

Hai, Admixtures are materials in the form of powder or fluids that are added to the concrete to give it certain characteristics not obtainable with plain concrete mixes. In normal...

Hello, Anyone got these? A bearing is a device to allow constrained relative motion between two or more parts, typically rotation or linear movement. Bearings may be classified broadly according...

Hey, Stainless steels are distinguished from other steels by a minimum chromium content of 10.5%, which makes them more resistant to corrosive aqueous environments and to oxidation. Although there are...