CMC-1F belongs to the rutile slag system of CO2 gas shielded copper plated seamless flux cored wire. Excellent welding process performance, very stable arc, less spatter, easy deslagging, and beautiful weld formation. All position welding process has excellent performance. It can also be welded vertically and downward. The diffusible hydrogen content of the weld is very low, and the plastic toughness and crack resistance of the weld metal are excellent. It can maintain excellent impact capacity at - 40 ℃.