DRILL STEM SUB
A class with identifier
http://staging4.data.posccaesar.org/iso/15926-4/rdl/RDS7155273
| Definition | A <DRILL STEM SUB> is a <DRILLING COMPONENT> that is used in rotary drilling as a part of the drill string assembly. |
| ISO number | 4976 |
| Note | Note: It can include pieces with specialized functions, like valves. Source: API 7 Specifications |
| RDS number | RDS7155273 |
| Source | Piping |