... removed before welding, welding meat lap length for 10 ~ 15 mm.g、When welding, welding torch should not be swinging, wire ... wire Material Gr1,Gr2,Gr3,Gr5,Gr7,Gr9,Gr12,etc. Size (mm) Diameter 0.2-7 Application Industrial, chemical, petrochemical, etc. Min. ... with various requirements for 22 years. Note: The chemical composition, size, and shape of the product can meet customers’ special requirements ...