In the face of rising oil prices, the 31 member countries of the International Energy Agency decided in early March to release 60 million barrels of crude oil reserves. However, the market's reaction to this statement was not strong, and oil prices c…
The unique alloy composition design of IN718 makes it have good comprehensive properties, namely higher strength, creep resistance and fatigue life, good ductility, excellent oxidation resistance, especially under 650℃, its mechanical properties Has…
Under the spread of the new crown epidemic, after Americans experienced life and death, they set off the largest "resignation wave" in history, and the number of resignations broke the highest record since statistics began in 2000. Since April this y…