D397模具堆焊焊条符合GBEDRCrMnMo-15
D327模具堆焊焊条符合GB..
D337模具堆焊焊条符合GB..
D397模具堆焊焊条符合GB..
BKR-90H/BKR-90..
BKR-61/BK-70S冲..
堆焊耐磨焊丝