材料铝青铜棒热处理至HB≥140是什么意思

2019-05-14 20:34

问题补充:
zwgzg1991
0 0

零件用铝青铜棒加工,然后热处理,表面硬度HB≥140

zwgzg
zwgzg ·
0 0

零件用铝青铜棒加工,然后热处理,表面硬度HB≥140

zzhst
zzhst ·
0 0

零件用铝青铜棒加工,然后热处理,表面硬度HB≥140