衬板专用耐磨堆焊焊条DURMATFD4028耐磨焊条0.30.8140.446-48HRcAWS420TFe8-AWS4201.21.22.4DURMATFD4115耐磨焊条0.2170.4142-44HRc14.115TFe8-1.41151.21.22.4DURMATFD4122耐磨焊条0.4170.41+48-50HRc14122TFe8-1.41221.21.22.4DURMATFD4351耐磨焊条0.050.91.11450.75N+38-41HRc~AWS410NiMoAWS410NiMo1.21.22.4)