Grind and flatten the surface of the 3G weld bead for 2G welding, and stagger the end and starting point of the weld bead according to the specifications
The surface of the 3G welding path is grounded and applied to 2G welding, and the end and starting point of the weld ingress are staggered according to the specifications
Grind and level the surface of 3G weld bead, then apply 2G welding, and stagger the end and start points of weld bead according to the specification<br>