0001: 3.12 - Riser and guide line tensioners, drill string compensator | 1 | |||
0002-0003: 3.13 - Drill collars, chiksan circulating head, junk basket, bumper safety joint, cementing equipment, bumper subs, casing equipment, power casing tong hydraulic casing tong, core barrel, power sub, power slip, spinning wrench | 261 |