en_tn/exo/38/19.md

The bases ... courtyard were made of bronze

For 38:17-20, see how you translated many of these words in Exodus 27:16 and Exodus 27:17-19.

twenty ... five ... four

"20 ... 5 ... 4" (See: rc://en/ta/man/translate/translate-numbers)

The covering for their tops and its rods were made of silver

This can be stated in active form. AT: "They made the covering for the tops of the posts and their rods out of silver" (See: rc://en/ta/man/translate/figs-activepassive)