As far as iron plate welding flanges are concerned, many customers question whether the quality of iron plate welding flanges is better than that of forged welding flanges. In fact, the quality of the iron plate welding flange and the quality of the forged welding flange are the same, but where can the iron plate welding flange not be guaranteed, that is, the material of the iron plate welding flange is the most unguaranteed, because in the general process, the density of the iron plate welding flange is no problem, but in the process of production, the blank of the iron plate welding flange is rarely tested, so after the production, the material of the iron plate welding flange that has not been tested cannot be guaranteed.