As in the Mosaic tabernacle, the metals used expressed the glory of God. The closer to the ark, the throne of Yahweh, the more valuable was the metal used. Everything inside the temple was gold or gold plated, and outside the temple there was bronze. While the ordinary Israelite did not see the inside of the temple, he or she would have known of its glory. Perhaps this section ( 1 Kings 7:48-50) is shorter than the former one ( 1 Kings 7:13-47) because the majority of the people, who were not priests, did not see these furnishings. [source][source][source]
"The candelabra were arranged down the length of the main sanctuary to give light on these tables ( Exodus 25:31-40)." [1][source]