terms:ball_sealers
Balls made of nylon, hard rubber, or both, and used to shut off perforations through which excessive fluid is lost.
terms/ball_sealers.txt · Last modified: 2023/11/22 08:39 by 127.0.0.1
Balls made of nylon, hard rubber, or both, and used to shut off perforations through which excessive fluid is lost.