DIN 20378-1990 标准详情
- 标准号:DIN 20378-1990
- 中文标题:打眼锤.钻杆和钻头圆锥连接用锥度量规
- 英文标题:Drilling hammers; taper gauges for tapered connections of drill rods and bits
- 标准类别:德国标准
- 发布日期:1990-10
This standard fixes dimensions and surface conditions of gauges which are used to proof the tapered coupling parts of drill rods as per DIN 20377 and percussion bits as per DIN 20379.
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