There is such a class of gases, which are very inert in the atmosphere and difficult to react with other substances to form compounds. They are called noble gases, also known as noble gases. Next we will introduce the least rare of the rare gases, argon (Ar). Argon is colorless and odorless. It cann

1. The advantage of Ar+He argon is that the arc combustion is very stable and the spatter is extremely small. The advantages of helium are high arc temperature, high heat input to the base metal, and fast welding speed. The advantages of both can be obtained by adding a certain amount of helium with

Shanghai Wangen Company wishes everyone a happy Spring Festival and a prosperous Year of the Tiger

South African industrial gases specialist Air Products has used its expertise in specialty gases to extend the shelf life of a wide variety of food products through the use of modified atmospheric packaging (MAP), which includes changing the gas inside the food packaging.The company uses three main