Isaac Kremer/ January 14, 2018/ / 0 comments
In plumbing a sleeve-like element with hexagonal outside to be turned by a wrench and with right-hand and left-hand threads inside to couple the ends to two pipes. (Saylor, 1952)
Your email address will not be published. Required fields are marked *
Notify me of new posts by email.
Δ
This site uses Akismet to reduce spam. Learn how your comment data is processed.
