The welding parts of the door are more, and the welding slag of each welding part must be carefully removed. First knock the slag with a board file or flat iron, and then polish the weld with a polishing machine and emery cloth to smooth it. Welding slag that spills into other parts should also be cleaned along with the trend.

Second, apply atomized ash with atomized ash and curing agent (ratio 50:1) stir evenly, apply on the welding part. Deal with weld defects.

Third, after grinding the atomized ash is dry, use the polishing machine and emery cloth to fully polish the various components of the door, especially the parts of the atomized ash should be polished.

Before painting, wipe all parts of the door with a wet cloth, and no dust can be left. The first spray is anti-rust paint, the second spray is black paint when the film is dry, and the last spray is varnish. Note that there should be no leakage parts, and no defects such as flow hanging. Individual fine points can be brushed brush paint.