Drilling hose also called Oilfield drilling hose, rotary drilling hose, is hollow, thin-walled, steel or aluminium alloy piping that is used on drilling rigs. It is hollow to allow drilling fluid to be pumped down the hole through the bit and back up the annul-us.
[pdf] Rotary drilling machine, also known as pile driver. It is a comprehensive drilling rig, for its usage of a variety of bottom layers, the characteristics of fast forming layers, less pollution, and strong mobility.
[pdf] A rotary table is a mechanical device on a drilling rig that provides clockwise (as viewed from above) rotational force to the to facilitate the process of drilling a . Rotary speed is the number of times the rotary table makes one full revolution in one minute (rpm).
[pdf] 
