What Kind of Welding Rods Do They Belong to?

Welding rods belong to hardware engineering consumption equipment. Welding rods are listed as "manufacturing industry" in the industry classification standardofof of the People's Republic of China: manufacturing of other metal products. The welding rod consists of two parts, the core and the medicine skin. Welding rodise is the outside of the metal core to apply the coating (drug skin) evenly, to the heart of the pressure on the core. Welding rods vary in variety and cores. Welding core is the metal core of the welding rod, in order to ensure the quality and performance of welds, the content of the metal elements in the weld core has strict regulations, especially in the harmful impurities (such as sulfur, phosphorus, etc.), there should be strict restrictions, better than the base material.