CHE422 carbon steel electrode with titanium calcium type coating with excellent welding performance, arc stability and weld bead appearance, less spatter, AC and DC. All-position welding. Uses: Used for general carbon steel structure and intensity of lower-grade low alloy steel, such as 09Mn2 and so on. CHE426 low hydrogen potassium type coating Carbon Steel Electrodewith good mechanical properties and crack resistance, AC and DC, all-position welding. Uses: Used for welding important carbon and low alloy steel. The chemical composition of deposited metal (%). CHE427 low hydrogen sodium type drug skin Carbon Steel Welding Electrode, using a DC power supply, can be all-position welding, the weld metal has excellent mechanical properties and crack resistance. Uses: Used for welding carbon steel and low alloy steel. CHE502 carbon steel electrode with titanium calcium type coating, both AC and DC can be all-position welding. Uses: mainly used for welding 16Mn and low alloy steel structure. CHE507 low hydrogen sodium type coating carbon steel welding rod, use: Suitable for carbon steel or low alloy steel such as 16Mn and ship with A, B, D, E grade steel construction of the main components of the ship, as well as boilers, pressure vessels, piping important steel welding. CHE426R low hydrogen potassium type coating pressure vessel steel and carbon steel electrode with good mechanical properties and crack resistance, AC and DC, can be all-position welding. Uses: used for pressure vessels and pressure piping carbon steel and strength-based, heat-resistant, low-temperature low-alloy steel welding. CHE427R low hydrogen sodium type coating pressure vessel steel and carbon steel electrode, using a DC power supply can be all-position welding, the deposited metal has excellent mechanical properties and crack resistance. Uses: used in pressure vessels, pressure piping between the welding of carbon steel and carbon steel, and strength-based, heat-resistant, low temperature low alloy steel.