SPCC refers to the continuous rolling of steel ingots through cold rolling mills into steel coils or sheets of required thickness. There is no protection on the surface of SPCC, and it is easily oxidized when exposed to the air, especially in a humid environment, the oxidation speed is accelerated, and dark red rust appears. The surface should be painted, electroplated or other protection when in use

The study room is a place for family members to work and study, requiring high lighting. General work and study lighting can use local lighting lamps, preferably incandescent lamps with higher power. The main lighting can be a single-fork chandelier or a fluorescent lamp, and the location may not be in the center. It can be determined according to the specific situation in the room. The shape

Overview: Sheet metal parts are products processed by sheet metal technology. We cannot do without sheet metal parts everywhere in our lives. Sheet metal parts are produced by filament power winding

The basic assumption of the slip line method is: the thickness of the sheet flange is constant, and it is in a plane strain state, the material is isotropic, without hardening, and does not consider the influence of frictional

Hardware refers to the five metal materials of gold, silver, copper, iron, and tin. Hardware is the mother of industry; the foundation of national defense, and the products of hardware materials are usually divided

The materials of mobile phone speaker nets and traditional speaker nets are mostly stainless steel, PVC, etc. This is the first point that they are similar, and the second point is that they are stamped twice or even multiple times. The punching mesh is punched the first time