标准编号:ISO 1717:1974
中文名称:岩石钻孔.干钻用旋转式钻杆和钻头.连接尺寸
英文名称:Rock drilling — Rotary drill-rods and rotary drill-bits for dry drilling — Connecting dimensions
发布日期:1974-06
标准编号:ISO 1717:1974
中文名称:岩石钻孔.干钻用旋转式钻杆和钻头.连接尺寸
英文名称:Rock drilling — Rotary drill-rods and rotary drill-bits for dry drilling — Connecting dimensions
发布日期:1974-06