标准摘要
[中文适用范围]： 规定了用于 8 种标称尺寸的冲击钻孔的绳索螺纹钻钢设备的基本尺寸。 该设备主要由六角柄杆、延长杆、连接套和钻头组成。 [外文原描述]： Specifies the basic dimensions of rope threaded drill steel equipment for percussive drilling of 8 nominal sizes. This equipment comprises mainly hexagonal shank rods, extension rods, coupling sleeves and drill bits.
英文名称Rock drilling equipment — Rope threaded drill steel equipment for percussive drilling, nominal sizes 22 mm to 38 mm