D680/D687 high chromium cast iron welding electrodes Model: EDZCr-D-15 surfacing hardness HRC: ≥ 58 
 Description: boron cast iron welding electrodes, the use of DCRP. Stable arc, little spatter, slag less easy to slag surfacing layer is difficult even with carbide cutting tools for cutting, only grinding, coarse microstructure of martensite + carbide composite. 
 Use: strong wear of the occasion, such as the cone bit small shaft, coal hole excavator to improve bucket, crusher rolls, pump box tube, the mixture leaves and so on.