NATE and ACE are working in the shop while the duct fabricator is on vacation. They will be fabricating fittings for various jobs according to the field drawings.
NATE: “Ace, we have to fabricate the fittings for the duct layout we’ve been working on. We have to make four fittings, which are listed below. There are also rough sketches of the fittings, which are labeled A, B, C, and D.”