What is external force? What types of external forces are metals subjected to during deformation? The metal placed on the hammer anvil was hit by the chain head, causing a change in its original shape. We call the hammering force an external force. There are three types of external forces that metal

A drag chain, also known as a tank chain, is a device used to guide built-in cables, oil pipes, air pipes, water pipes, etc. to move along a prescribed trajectory.The main function is to store, pull, and protect these pipelines, avoiding damage or interference they may suffer due to direct exposure

Many people use flat keys, and our national standard GB/T1096 for ordinary flat keys specifies three different types of flat keys, namely Type A (double round head), Type B (flat head), and Type C (one end round head and one end flat head).But I don't know if you have any questions when choosing: wh

Aeration pipe parameters and instructionsPackaging specification: 100 meters/rollPressure loss: ≤ 0.40kpa at 1Kw=200m, underwater loss ≤ 5kpSuitable configuration: Motor power 1Kw, matched with 150-200m microporous aeration tubeAeration tray: 9m/80cm, 10m/100cmConventional installation: Each acre of