部分标准内容:
ICS.77.140.60
中华xxxx国G家标准
GB/T6481—2002
代替GB/T6481-1994
凿岩用锥体连接中空六角形钎杆,Hollow hexagonal drill rods with taperd connection for rock drilling(ISO 723: 1991,Rock drilling equipment-Forged collaredshanks and corresponding chuck bushings for hollow hexagonaldrill steels ;ISO 1718:1991,Rock drilling equipment—-Drillrods with tapered connection for perc...................
更多内容请下载后查看!
21495162321[下载].rar
|