February 23, 2025

The last steam oven of domestic ethylene plant exits the stage of history

On October 10th, only one steam superheating furnace in the domestic ethylene plant—the ethyl ...

Placement and use of numerical control equipment

The reservoirs in the Shang 3 area of ​​Shanghe Oilfield are complex in structure, ...

Non-combined layer gear construction procedures and simulations

The establishment of the coordinate system refers to the habit of gear meshing analysis. The follow ...

Black High Strength A325 Heavy Hex Bolts

Model NO.: ASTM A325 ...